Quoted from Goronic:
I plan on looking under the PF every day for a few days to inspect wear and check for and tightening loosing screws. I know others would hate the idea, but I don't mind keeping a super close eye out on those things.
Further, I don't plan on have an box opening party - it will be the day after. Opening day will be me spending hours reviewing the PF (top and bottom) and running tests. Guests will not be happy with the long delay.
The key areas on my game after the first 150 plays were:
Flipper mech mounting screws (glued in now)
Flipper coil stops (I added blue loctite)
Drop target assemblies (my dwarf actually fell partially at about 250 plays added toothpicks and titebond III, so far so good)
Creature mech mounting screws ( I havent had one fall, but I glued the screws in after the dwarf target fell down)
Check the lower diverter in the left ramp, it has a single screw and when loose wont divert the ball properly (glued with blue loctite)
If you haven't already, order the external volume control for the door from pinnovators
Check the dwarf switches they take a terrible beating. I have bent my R and F down a couple times and am thinking of installing a thin washer below to make the whole assembly tilt down a little bit to take care of the air-balls.
One other thing is to look at the mystery target. Like the WOZ glinda target (my wife often can only shoot straight up the middle and beats the sh#t out of it) I think it needs a bit if stiff foam or an extra bit of support somewhere.
Im sure there are a few other very minor checks, but that was what I found mostly on my game.