Firepower seems to have fixed the "weak plunge" issue.
If you previously barely got the ball into play, the flippers wouldn't activate.
I've not been able to replicate the previous issue.
Yay!
Edit:
Nope. Spoke too soon.
That bug is still there.
If you just Barely get the ball through the gate at the top of the plunger lane, plunger is still active and flippers are not.
Anybody figure out what changed then for Firepower?
The pop bumpers have been tweaked to be more responsive.