[Lolzytripd]

I get that spark drive going of 6-12 times per round is a bit overkill

but just once
a single damn time
thats too much of a nerf gunners will no longer be able to pve at any form of an efficent manner.

I suggest

spark drive goes on a cool down of 2 after procing, that cool down goes down by 1 per crit.

so every 1 in 3 crits is a spark drive

OR

just reduces spark drives scaling to 10/20/30/40/50% instead of a guaranteed 100% of the time.