You need to replace the 2" hex standoff on the right ramp with a 1 5/8" part. I hit 5 in a row yesterday, what a rush.
I agree that the opening skill shot is annoying. All modes should be lit at the start of game. MH is tough, I think Slimer should sweep all the way left and right and not just hover in front of the ramp. I like the challenge of LS with arms crossed but Slimer is too much in the way.
I also frequently get stuck trying to finish Ballroom. It doesn't completely save progression. In the last phase you have to hit the left orbit and the right ramp in the allotted time. If you drain, it will keep the mode active (as per the adjustments option) but resets the shots and does not reset the mode tiner. So new ball, and you've got 7 seconds to hit *both* shots. Drives me crazy and my game typically ends here unless I bail and pick a different ladder.
All that said the game is a blast and it just needs some tweeks to remove some of the annoying aspects of it. I wouldn't say it sucks though, it's mostly super fun, but only with some hardware changes to "fix" it. Some relatively easy software changes can make a big difference so hopefully we'll get a final code polish.