This question has probably been asked over 100 times in this thread, but is it normal that I only have maybe 2/3 success rate when hitting the subway ramp using the right flipper? The other 1/3 end up in either an airball that lands on the plastics to the left or the ball just comes straight back down the ramp about half way up. My game is the premium.

I already have an airball protector over the subway. When I hit the ball with approximately 50% force the ball is much more likely to successfully climb up the ramp. I did notice that the entrance metal on the sub ramp is a bit lifted. I believe that this might be the issue. I'll level it and let the thread know if that reaolved the issue.

No cliffy on skelari brothers. I'll be sure not to install them after hearing this. It turned out that the air ball protector didn't have washers under the two left nuts that connect it to the left plastic. I noticed that the ball was generating friction against the protector occasionally. Kind of surprising that the 1/16th of an inch could make that much of a difference, but just for future reference this was my problem. Tried to put on 1/8 inch spacers, but the screw isn't long enough. Works great now with standard size playfield washers.