D'oh!, what an idiot
Yes I had coffee, maybe not enough;)
Anyways, I still don't see what arc ok can do if the torch just fires and stops, I thought arc ok would only be relevant before a torch move?
This new system is a proper current monitoring arc ok signal so should be accurate, it's passed all the tests recommended by CandCNC anyway.
If there is some test I can do to narrow things down I will do it, but the delay seems to be the same if I'm doing a series of quick bursts or a series of long cuts, the first activation is longer.
Thanks