Quoted from jalpert:
My flipper is a litter "higher" than the ball guide. I haven't touched it from the factory, both shots are makable, and both shots are very hard. If this game has a flaw, it's that the small loop is makable, I doubt even the best players can loop it 2 or 3 times, so not great. (I'm sure someone has done it once, but I don't think it's consistently possible)
I can make that shot probably 40% of the time, which I feel is pretty good. I've done 3 in a row many times, 4 I think is my record as well. I immediately adjusted my flipper flush with the ball guide when I received the game. Not sure why they had it out a little. My guess is to give more clearance for the loop/auto launcher.
When the ball is moving slow, the shot is late on the little flipper. If you shoot even a little early, you'll get siderail-bounce rejects. Momentum changes the shot to earlier on the flipper of course.
If you have a prem/LE, if you shoot really late on the little flipper, you can bank the ball off the post above the drops and send the ball under the ramp to start a mode or nail a Mariner jackpot. I shoot for that often, although it is tough. Kinda like TZ bank shot to the piano from side flipper.