I measured the voltage and current of H.V. transformer when I changed the time delay. Here is the scope traces when the delay changed from 1280ms to 1580 ms @ 10 kV. Please note the current wave form @ delay less than 1480 ms, there was a current later than the charging current.
There were no miss fire when I set the delay time less than 1480 ms when I increased the high voltage up to 20 kV. After I fix the Prometheus timing, I will try to send the seed beam and adjust the time to synchronize them.