Graeme Hirst recalls: The day itself proved to be a bit of a technical challenge, of course. The control system blocked the first attempt to fire the shot so we had to do the tour of the hardware first while Andy Kidd switched the computer off and back on again. In retrospect that was no bad thing as we were still suffering from an occasional electrical tracking problem on the output side of the laser-triggered switches. Of course on the "first shot" this happened. The resulting pressure pulse (shock wave?) in the water-filled transmission line generally cracked the window which let the laser beam into the switch and we'd go back into the shielded area to find water leaking (not exactly gushing but a lot more than dripping) out and onto the floor. That might've taken some explaining...
