Thank you for the answer. Seems great, it indeed sounds like a lot of power if a magnet can jump so high. Was it a neo magnet? Also, have you tried to attach a step-down transformer to the output of the grid? And what diode did you use?
I found some HV vacuum tube diodes on ebay:
High Voltage Diode Plug In Rectifier New 20 kV 816 Tube - eBay (item 120332092129 end time Dec-10-08 14:36:19 PST)
What do you think about these? The vacuum tube diodes are supposed to have the highest response times.