Works fine on my Pro, seems like the description just isn't clear but seems accurate.

To be clear you hold left flipper, plunge up the outer loop, hard enough to drop into the main loop behind the jump ramp, but soft enough that the ball stops and rolls back down through the inner loop/spinner from the top. You then make the upper flipper shot into the super jackpot lane hitting the target there. Boom

With the ball at rest there, and moving the auto plunger up to touch the ball by hand, do both prongs or whatever you call them touch the ball evenly? On mine the left prong hit the ball, but the right side didn't touch at all, by several millimeters. It would have been knocking the ball up and out of the channel, or putting spin on it. Anyway, as I posted in the club thread, I just bent each side/prong with needle nose pliers until they were lined up to touch the ball evenly when it was at rest - now the autoplunge works nearly perfectly. Originally mine hit the upper flipper most of the time if I wasn't holding it up...

I'm assuming that may in fact be what you're correcting with the felt pads - but I can't tell for sure from the picture.