Quoted from robin:

GN'R have been bugging me with their launch ramp for years. Great game, but having the hang ups every now and then (mostly during Paradise City multiball) really sucks.
I did all of those suggestions you mention, including the service bulletin which involved lowering the back of the ramp and drilling new holes in the backboard. To no avail. Nothing helps, balls keep getting stuck in the shooter lane. Sometimes 6 in a row. Someone suggested removing the black "plastic" from the ramp, sandblasting it to chrome but that would look awful. It needs to be black. Someone else suggested lowering the back of the game, but I need my games at 6.5 degrees minimum or I'll fall asleep.
I have also replaced the coil with a new one (same rating), no dice. So all that remains to try is a stronger coil. Any part# suggestions for that?

Quoted from CaptainNeo:

yes, the VUK throws it up and basically lands on the backstage pass insert. Which I really don't know what that even does. Seems like it was ment for something that never got done. Launching the ball hard, makes the ball go around the back and along the left loop to the upper flipper. Not sure if there is a skill shot for the upper loop on the plunge or not. I had one with stage 3 entrance, but didn't dabble with it enough to know if the software has stuff like that programmed in.

Quoted from badbilly27:

I own one of his old ones and never have this problem either.