Quoted from jalpert:
My new used AFMr has been a bit of a pain, but I wanted to post a couple solutions that helped.
The first issue was that the VUK wasn't popping the ball consistently to the left wireform. While this seems to be a common problem, my solution wasn't what most people did to fix it. The ball drops into the mech from above it, in my game the ball wasn't popping because the ball wasn't making it into the VUK mech. I bent the lip on the VUK where the ball rolls into the mech up giving it a little steeper angle so the ball rolls into the VUK a little quicker and that fixed it.
The second issue I had is the ball flying off the right wireform. Some suggestions that were made were lowering the flipper power, bringing the front of the ramp higher via washers, a small rubber ring on the wireform to slow the ball down, none of these solutions worked. The key to fixing the issue was bending the wireform, but specifically, pulling up on the top wire bending it upward. By bending the top wire up, it keeps the ball down and doesn't let it ride up and over it. I'll attach a pic on where I bent, but the right side has a lot more welds and is a lot harder to bend. The parts I bent were the only parts that both made sense and parts that I could.
Maybe this will help someone down the line, but my ball hits the left hibitrail every time, and full speed shots to the lock shot stay on the wireform now.
I just acquired a new to me AFMr Classic with very low plays and it suffers from the balls falling off the right wire from. This is actually my favourite shot in the game, and if I get a clean fast shot, the ball falls off the habit rail 100% of the time, and drains.
I really do not want to bend the wire form by hand, as in my experience, it is REALLY hard to bend this and with the wrong tools things get scratched and chewed up in a second.
Has anybody else come up with a good solution to this that does not involve bending the wireform, or if it does, well... looking for recommendation to prevent any damage to the wireform.