OK. So I had an interesting experience. While I finished the restore on Friday, I haven't played a ton of games. I played more tonight and noticed that the main ramp was clunky. Hard to describe, but it wasn't as smooth as it was in the past and I was getting strange rejects. Turns out that the dimples for the main ramp aren't correct. When I installed it originally it was clear that both dimples weren't possible with my ramp, so I did my best to measure and get the ramp lined up and used the left dimple and ignored the right. This ended up pulling the ramp too far left.
After some careful measurement on the original playfield, I determined that the ramp flap should be closer to the right target than the left target. I was no more than 1/16th of an inch off, but it made a huge difference. I redrilled and moved the ramp and I can't get over the difference.
So, a few things pop out to me. First, it's the first topside issue I had with placement. Second, a 1/16 of an inch is a very small thing to have made that big of a difference, but it did and the shot is so much better now. Imagine how hard it must be to design these things to shoot smoothly when fractions of an inch have that much impact!
dmacy make sure you don't trust the ramp flap dimples and measure from your original before you drill. Maybe my reproduction ramp is a little different, but it was OK on my original PF.
Figured it was worth sharing.
Marc