Use of values versus from/to

There is almost no occasion where there is any advantage in using the attributes from and to.

For most animations involving objects that move it is very likely that you will need to identify several intermediate positions.

For example, any kind of figure animation is likely to have a cycle of 8 or 12 separate positions which will result in a values list of a minimum of 8 or 9 separate values. If the action is at all complex, the values list is likely to be much longer. For example, here is a horse and rider moving away from the viewer. Because the path is at an angle and the action is moving away from the viewer, the values list consists of 75 different values. An example is:

<animate attributeName="d"  
values="
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;M488.4,198.3c0.3,2,1.2,6.1,0.1,5.7c0,0,-3.1,0.6,-3.1,0.6c-3,-1.3,-3.9,-5.3,-0.9,-4.1c-3,-1.2,-3.9,-5.3,-0.9,-4.1c-3,-1.2,-4.3,-5.9,-1.3,-4.7c-3,-1.2,-3.5,-5.2,-0.5,-4c0,0,5.1,4,5.1,4Z
;M474.3,195c0.3,1.9,1.2,6,0.1,5.5c0,0,-3.1,0.6,-3.1,0.6c-2.9,-1.2,-3.8,-5.2,-0.9,-4c-2.9,-1.2,-3.8,-5.3,-0.9,-4.1c-2.9,-1.2,-4.2,-5.9,-1.2,-4.7c-3,-1.2,-3.5,-5.1,-0.6,-3.9c0,0,5.1,3.9,5.1,3.9Z
;M460.3,191.3c0.3,2,1.2,6,0.1,5.6c0,0,-3,0.6,-3,0.6c-2.9,-1.2,-3.8,-5.2,-0.9,-4.1c-2.9,-1.1,-3.8,-5.2,-0.9,-4c-2.9,-1.2,-4.1,-5.8,-1.2,-4.6c-2.9,-1.2,-3.5,-5.1,-0.6,-3.9c0,0,5,3.9,5,3.9Z
;M446.7,188c0.2,1.9,1.1,5.9,0.1,5.5c0,0,-3,0.6,-3,0.6c-2.9,-1.2,-3.8,-5.2,-0.9,-4c-2.9,-1.2,-3.7,-5.2,-0.9,-4c-2.8,-1.2,-4.1,-5.8,-1.2,-4.6c-2.9,-1.2,-3.4,-5,-0.6,-3.9c0,0,5,3.9,5,3.9Z
;M433,184.8c0.3,1.9,1.1,5.8,0.1,5.4c0,0,-2.9,0.6,-2.9,0.6c-2.8,-1.2,-3.7,-5.1,-0.9,-3.9c-2.8,-1.2,-3.7,-5.1,-0.9,-4c-2.8,-1.1,-4,-5.7,-1.2,-4.5c-2.8,-1.2,-3.3,-4.9,-0.5,-3.8c0,0,4.8,3.8,4.8,3.8Z
;M419.3,181.5c0.2,1.9,1.1,5.8,0.1,5.4c0,0,-2.9,0.6,-2.9,0.6c-2.8,-1.2,-3.7,-5.1,-0.9,-4c-2.8,-1.1,-3.6,-5,-0.9,-3.9c-2.7,-1.1,-3.9,-5.6,-1.2,-4.5c-2.7,-1.1,-3.3,-4.9,-0.5,-3.7c0,0,4.8,3.7,4.8,3.7Z
;M405.9,178.2c0.2,1.9,1.1,5.8,0.1,5.3c0,0,-2.9,0.6,-2.9,0.6c-2.7,-1.1,-3.6,-5,-0.8,-3.9c-2.8,-1.1,-3.7,-5,-0.9,-3.8c-2.8,-1.2,-3.9,-5.6,-1.2,-4.5c-2.7,-1.1,-3.3,-4.8,-0.5,-3.7c0,0,4.7,3.7,4.7,3.7Z
;M392.3,174.8c0.3,1.9,1.1,5.7,0.1,5.3c0,0,-2.8,0.6,-2.8,0.6c-2.7,-1.2,-3.5,-5,-0.8,-3.9c-2.7,-1.1,-3.6,-4.9,-0.9,-3.8c-2.7,-1.1,-3.9,-5.5,-1.2,-4.4c-2.7,-1.1,-3.2,-4.8,-0.5,-3.7c0,0,4.7,3.6,4.7,3.6Z
;M379.2,171.7c0.3,1.8,1.1,5.6,0.1,5.2c0,0,-2.7,0.6,-2.7,0.6c-2.7,-1.1,-3.5,-4.9,-0.9,-3.8c-2.6,-1.1,-3.5,-4.9,-0.8,-3.8c-2.7,-1.1,-3.8,-5.4,-1.2,-4.4c-2.6,-1,-3.2,-4.7,-0.5,-3.6c0,0,4.6,3.6,4.6,3.6Z
;M366.1,168.6c0.3,1.8,1.1,5.5,0.1,5.1c0,0,-2.7,0.6,-2.7,0.6c-2.6,-1.1,-3.5,-4.8,-0.8,-3.8c-2.7,-1,-3.5,-4.8,-0.9,-3.7c-2.6,-1.1,-3.8,-5.4,-1.1,-4.3c-2.7,-1.1,-3.2,-4.7,-0.6,-3.7c0,0,4.6,3.6,4.6,3.6Z
;M352.8,165.3c0.2,1.8,1.1,5.6,0.1,5.2c0,0,-2.7,0.5,-2.7,0.5c-2.6,-1,-3.4,-4.8,-0.8,-3.7c-2.6,-1.1,-3.5,-4.8,-0.9,-3.7c-2.6,-1.1,-3.7,-5.4,-1.1,-4.3c-2.6,-1.1,-3.1,-4.6,-0.5,-3.6c0,0,4.5,3.6,4.5,3.6Z
;M339.8,162.3c0.2,1.7,1.1,5.4,0.1,5c0,0,-2.6,0.6,-2.6,0.6c-2.6,-1.1,-3.4,-4.7,-0.8,-3.7c-2.6,-1,-3.4,-4.7,-0.9,-3.7c-2.5,-1,-3.7,-5.3,-1.1,-4.2c-2.6,-1.1,-3.1,-4.6,-0.5,-3.6c0,0,4.4,3.5,4.4,3.5Z
;M327,159.1c0.3,1.7,1.1,5.4,0.2,5c0,0,-2.6,0.6,-2.6,0.6c-2.5,-1.1,-3.3,-4.7,-0.8,-3.7c-2.5,-1,-3.4,-4.7,-0.9,-3.6c-2.5,-1.1,-3.6,-5.2,-1.1,-4.2c-2.5,-1,-3,-4.6,-0.5,-3.5c0,0,4.4,3.4,4.4,3.4Z
;M314.2,155.9c0.2,1.8,1.1,5.4,0.1,5c0,0,-2.5,0.6,-2.5,0.6c-2.5,-1.1,-3.3,-4.7,-0.8,-3.6c-2.5,-1.1,-3.3,-4.7,-0.8,-3.7c-2.5,-1,-3.6,-5.1,-1.2,-4.1c-2.4,-1,-3,-4.5,-0.5,-3.5c0,0,4.3,3.4,4.3,3.4Z
;M301.7,152.9c0.3,1.7,1.1,5.3,0.1,4.9c0,0,-2.5,0.6,-2.5,0.6c-2.4,-1,-3.2,-4.6,-0.8,-3.6c-2.4,-1,-3.2,-4.6,-0.8,-3.6c-2.4,-1,-3.6,-5.1,-1.1,-4.1c-2.5,-1,-3,-4.5,-0.5,-3.4c0,0,4.2,3.3,4.2,3.3Z
;M289,149.9c0.3,1.7,1.1,5.2,0.2,4.9c0,0,-2.5,0.5,-2.5,0.5c-2.4,-1,-3.2,-4.5,-0.8,-3.5c-2.4,-1,-3.2,-4.6,-0.8,-3.6c-2.4,-1,-3.5,-5.1,-1.1,-4.1c-2.4,-1,-2.9,-4.4,-0.5,-3.4c0,0,4.2,3.4,4.2,3.4Z
;M276.6,147c0.2,1.7,1,5.2,0.1,4.8c0,0,-2.4,0.6,-2.4,0.6c-2.4,-1,-3.2,-4.5,-0.8,-3.5c-2.4,-1,-3.2,-4.5,-0.8,-3.5c-2.4,-1,-3.5,-5,-1.1,-4c-2.4,-1,-2.9,-4.4,-0.5,-3.4c0,0,4.1,3.3,4.1,3.3Z
;M264.3,143.9c0.3,1.7,1,5.1,0.2,4.8c0,0,-2.4,0.5,-2.4,0.5c-2.4,-1,-3.2,-4.4,-0.8,-3.5c-2.4,-0.9,-3.2,-4.4,-0.8,-3.4c-2.4,-1,-3.4,-5,-1.1,-4c-2.3,-1,-2.8,-4.3,-0.5,-3.4c0,0,4.1,3.3,4.1,3.3Z
;M251.9,140.9c0.2,1.7,1,5.1,0.1,4.7c0,0,-2.4,0.6,-2.4,0.6c-2.3,-1,-3.1,-4.4,-0.7,-3.4c-2.4,-1,-3.1,-4.5,-0.8,-3.5c-2.3,-1,-3.4,-4.9,-1.1,-3.9c-2.3,-1,-2.8,-4.3,-0.5,-3.3c0,0,4,3.2,4,3.2Z
;M239.7,138c0.3,1.6,1,5,0.2,4.7c0,0,-2.4,0.5,-2.4,0.5c-2.2,-1,-3,-4.4,-0.7,-3.4c-2.3,-1,-3.1,-4.4,-0.8,-3.4c-2.3,-1,-3.4,-4.9,-1.1,-3.9c-2.3,-1,-2.7,-4.3,-0.5,-3.3c0,0,4,3.2,4,3.2Z
;M227.8,135.1c0.2,1.7,1,5,0.1,4.7c0,0,-2.2,0.5,-2.2,0.5c-2.3,-0.9,-3.1,-4.3,-0.8,-3.3c-2.3,-1,-3,-4.3,-0.8,-3.4c-2.2,-0.9,-3.3,-4.8,-1,-3.8c-2.3,-1,-2.8,-4.2,-0.5,-3.3c0,0,3.9,3.2,3.9,3.2Z
;M215.8,132.3c0.2,1.6,1,5,0.2,4.6c0,0,-2.3,0.6,-2.3,0.6c-2.2,-1,-3,-4.3,-0.8,-3.4c-2.2,-0.9,-2.9,-4.2,-0.7,-3.3c-2.2,-0.9,-3.3,-4.8,-1,-3.8c-2.3,-1,-2.7,-4.2,-0.5,-3.2c0,0,3.8,3.1,3.8,3.1Z
;M203.9,129.4c0.2,1.6,1,4.9,0.1,4.6c0,0,-2.2,0.5,-2.2,0.5c-2.2,-0.9,-2.9,-4.2,-0.8,-3.3c-2.1,-0.9,-2.9,-4.2,-0.7,-3.3c-2.2,-0.9,-3.2,-4.7,-1,-3.8c-2.2,-0.9,-2.7,-4.1,-0.5,-3.2c0,0,3.8,3.1,3.8,3.1Z
;M192,126.4c0.3,1.6,1,4.9,0.2,4.5c0,0,-2.2,0.6,-2.2,0.6c-2.2,-1,-2.9,-4.2,-0.8,-3.3c-2.1,-0.9,-2.9,-4.2,-0.7,-3.3c-2.2,-0.9,-3.2,-4.6,-1,-3.7c-2.2,-0.9,-2.7,-4.1,-0.5,-3.2c0,0,3.8,3.1,3.8,3.1Z
;M180.4,123.8c0.2,1.5,0.9,4.7,0.1,4.4c0,0,-2.1,0.5,-2.1,0.5c-2.1,-0.9,-2.9,-4.1,-0.8,-3.2c-2.1,-0.9,-2.8,-4.1,-0.7,-3.2c-2.1,-0.9,-3.1,-4.6,-1,-3.7c-2.1,-0.9,-2.6,-4,-0.5,-3.1c0,0,3.7,3,3.7,3Z
;M168.6,121c0.3,1.5,1,4.7,0.2,4.4c0,0,-2.1,0.5,-2.1,0.5c-2.1,-0.9,-2.8,-4.1,-0.7,-3.2c-2.1,-0.9,-2.9,-4,-0.8,-3.2c-2.1,-0.8,-3.1,-4.5,-1,-3.6c-2.1,-0.9,-2.5,-4,-0.4,-3.1c0,0,3.6,3,3.6,3Z
;M157.2,118.2c0.2,1.5,1,4.7,0.2,4.3c0,0,-2.1,0.6,-2.1,0.6c-2.1,-0.9,-2.8,-4.1,-0.7,-3.2c-2.1,-0.9,-2.8,-4.1,-0.8,-3.2c-2,-0.9,-3,-4.5,-0.9,-3.6c-2.1,-0.9,-2.6,-3.9,-0.5,-3.1c0,0,3.6,3,3.6,3Z
;M145.6,115.4c0.3,1.5,1,4.7,0.2,4.4c0,0,-2.1,0.5,-2.1,0.5c-2,-0.9,-2.7,-4,-0.7,-3.2c-2,-0.8,-2.7,-4,-0.7,-3.1c-2,-0.9,-3,-4.5,-1,-3.6c-2,-0.9,-2.5,-3.9,-0.4,-3c0,0,3.5,2.9,3.5,2.9Z
;M134.5,112.6c0.2,1.5,0.9,4.6,0.1,4.3c0,0,-2,0.5,-2,0.5c-2,-0.9,-2.7,-3.9,-0.7,-3.1c-2,-0.8,-2.7,-3.9,-0.7,-3.1c-2,-0.8,-3,-4.4,-1,-3.5c-2,-0.9,-2.4,-3.9,-0.4,-3c0,0,3.5,2.9,3.5,2.9Z
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;M111.8,107.3c0.3,1.5,1,4.5,0.2,4.2c0,0,-1.9,0.5,-1.9,0.5c-2,-0.8,-2.7,-3.9,-0.7,-3c-2,-0.9,-2.7,-3.9,-0.7,-3c-2,-0.9,-2.9,-4.4,-1,-3.5c-1.9,-0.9,-2.4,-3.8,-0.4,-3c0,0,3.4,2.9,3.4,2.9Z
;M100.7,104.6c0.3,1.5,1,4.5,0.2,4.2c0,0,-1.9,0.5,-1.9,0.5c-1.9,-0.8,-2.6,-3.8,-0.7,-3c-1.9,-0.8,-2.6,-3.8,-0.7,-3c-1.9,-0.8,-2.9,-4.3,-0.9,-3.5c-2,-0.8,-2.4,-3.7,-0.5,-2.9c0,0,3.4,2.8,3.4,2.8Z
;M89.8,102.1c0.2,1.4,0.9,4.4,0.2,4.1c0,0,-1.9,0.5,-1.9,0.5c-1.9,-0.8,-2.6,-3.8,-0.7,-3c-1.9,-0.8,-2.6,-3.7,-0.7,-2.9c-1.9,-0.8,-2.8,-4.2,-0.9,-3.4c-1.9,-0.8,-2.3,-3.7,-0.4,-2.9c0,0,3.3,2.8,3.3,2.8Z
;M78.8,99.5c0.3,1.5,0.9,4.4,0.2,4.1c0,0,-1.9,0.5,-1.9,0.5c-1.8,-0.8,-2.5,-3.7,-0.6,-2.9c-1.9,-0.8,-2.6,-3.8,-0.7,-3c-1.9,-0.8,-2.8,-4.1,-0.9,-3.3c-1.9,-0.8,-2.3,-3.7,-0.5,-2.9c0,0,3.3,2.8,3.3,2.8Z
;M67.9,96.7c0.2,1.4,0.9,4.3,0.2,4c0,0,-1.8,0.5,-1.8,0.5c-1.9,-0.8,-2.6,-3.7,-0.7,-2.9c-1.9,-0.8,-2.5,-3.7,-0.7,-2.9c-1.8,-0.8,-2.7,-4.1,-0.9,-3.3c-1.8,-0.8,-2.3,-3.6,-0.4,-2.8c0,0,3.2,2.7,3.2,2.7Z
;M57,94.2c0.3,1.4,0.9,4.2,0.2,3.9c0,0,-1.8,0.6,-1.8,0.6c-1.8,-0.8,-2.5,-3.7,-0.7,-2.9c-1.8,-0.8,-2.4,-3.7,-0.6,-2.9c-1.8,-0.8,-2.7,-4.1,-0.9,-3.3c-1.8,-0.8,-2.3,-3.6,-0.4,-2.8c0,0,3.1,2.7,3.1,2.7Z
;M46.6,91.8c0.2,1.3,0.9,4.2,0.2,3.9c0,0,-1.8,0.5,-1.8,0.5c-1.8,-0.8,-2.4,-3.6,-0.7,-2.8c-1.7,-0.8,-2.4,-3.6,-0.6,-2.9c-1.8,-0.7,-2.7,-4,-0.9,-3.2c-1.8,-0.8,-2.2,-3.5,-0.4,-2.8c0,0,3.1,2.7,3.1,2.7Z
;M35.8,89.2c0.3,1.3,0.9,4.2,0.2,3.9c0,0,-1.7,0.5,-1.7,0.5c-1.8,-0.8,-2.4,-3.6,-0.7,-2.8c-1.7,-0.8,-2.4,-3.6,-0.6,-2.8c-1.8,-0.8,-2.7,-4,-0.9,-3.3c-1.8,-0.7,-2.2,-3.4,-0.4,-2.7c0,0,3,2.6,3,2.6Z
;M25.4,86.7c0.2,1.3,0.8,4.1,0.2,3.8c0,0,-1.8,0.5,-1.8,0.5c-1.7,-0.7,-2.3,-3.5,-0.6,-2.7c-1.7,-0.8,-2.4,-3.6,-0.7,-2.8c-1.7,-0.8,-2.5,-4,-0.8,-3.2c-1.7,-0.8,-2.2,-3.4,-0.4,-2.7c0,0,3,2.6,3,2.6Z
;M14.7,84c0.2,1.3,0.9,4.1,0.2,3.8c0,0,-1.7,0.5,-1.7,0.5c-1.7,-0.7,-2.3,-3.5,-0.6,-2.7c-1.7,-0.8,-2.4,-3.5,-0.7,-2.8c-1.7,-0.7,-2.5,-3.9,-0.8,-3.2c-1.7,-0.7,-2.1,-3.4,-0.4,-2.6c0,0,3,2.5,3,2.5Z
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;M-5.8,79.2c0.2,1.3,0.8,4,0.2,3.7c0,0,-1.7,0.5,-1.7,0.5c-1.6,-0.7,-2.2,-3.4,-0.6,-2.7c-1.6,-0.7,-2.3,-3.4,-0.6,-2.7c-1.7,-0.7,-2.5,-3.8,-0.8,-3c-1.7,-0.8,-2.1,-3.3,-0.4,-2.6c0,0,2.9,2.4,2.9,2.4Z
;M-16,76.8c0.2,1.3,0.8,3.9,0.2,3.7c0,0,-1.7,0.4,-1.7,0.4c-1.6,-0.7,-2.2,-3.3,-0.6,-2.6c-1.6,-0.7,-2.2,-3.4,-0.6,-2.7c-1.6,-0.7,-2.5,-3.7,-0.8,-3c-1.7,-0.7,-2.1,-3.3,-0.4,-2.6c0,0,2.8,2.4,2.8,2.4Z
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;M-223.8,27.9c0.2,0.9,0.7,2.9,0.3,2.7c0,0,-1.2,0.4,-1.2,0.4c-1.1,-0.5,-1.6,-2.5,-0.4,-2c-1.2,-0.5,-1.7,-2.5,-0.5,-2c-1.2,-0.5,-1.8,-2.8,-0.7,-2.3c-1.1,-0.5,-1.4,-2.5,-0.3,-1.9c0,0,2.1,1.8,2.1,1.8Z
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;M-249.9,21.6c0.2,0.9,0.6,2.9,0.2,2.7c0,0,-1.1,0.4,-1.1,0.4c-1.1,-0.5,-1.5,-2.5,-0.4,-2c-1.1,-0.5,-1.6,-2.4,-0.5,-1.9c-1.1,-0.5,-1.7,-2.7,-0.6,-2.2c-1.1,-0.5,-1.4,-2.4,-0.3,-1.9c0,0,1.9,1.7,1.9,1.7Z
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;M-275.2,15.8c0.2,0.9,0.6,2.8,0.3,2.6c0,0,-1.1,0.4,-1.1,0.4c-1,-0.5,-1.4,-2.4,-0.4,-1.9c-1,-0.5,-1.5,-2.3,-0.4,-1.9c-1.1,-0.4,-1.7,-2.6,-0.6,-2.1c-1.1,-0.5,-1.4,-2.3,-0.3,-1.8c0,0,1.8,1.7,1.8,1.7Z
;M-283.6,13.8c0.2,0.9,0.6,2.7,0.2,2.5c0,0,-1,0.4,-1,0.4c-1,-0.5,-1.4,-2.3,-0.4,-1.8c-1,-0.5,-1.5,-2.3,-0.4,-1.8c-1.1,-0.5,-1.6,-2.6,-0.6,-2.1c-1,-0.5,-1.3,-2.2,-0.3,-1.8c0,0,1.8,1.6,1.8,1.6Z
;M-291.9,11.9c0.2,0.8,0.6,2.6,0.3,2.5c0,0,-1,0.3,-1,0.3c-1,-0.5,-1.5,-2.3,-0.5,-1.8c-1,-0.5,-1.4,-2.2,-0.4,-1.8c-1,-0.4,-1.5,-2.5,-0.5,-2.1c-1,-0.4,-1.3,-2.1,-0.3,-1.7c0,0,1.7,1.6,1.7,1.6Z
;M-314.4,35.7c-0.1,0.8,-0.2,2.5,-0.7,2.5c0,0,-1.9,1.2,-1.9,1.2c-1.3,0,-1,-1.7,0.1,-1.7c-1.1,0,-1,-1.7,0.3,-1.7c-1.3,0,-1.2,-1.7,0.1,-1.9c-1.3,0.2,-1,-1.5,0.3,-1.7c0,0,2,0.5,2,0.5Z" 
fill="freeze" begin="w18strt4.end" dur="4s" xlink:href="#w18strt5p32" />

78 of these path definitions each having 75 values are required to move the horse and rider a short distance in this gallop.

The way forward is never use from and to as almost certainly there will come a time when you have to switch to using values lists.