I can only go by my experience on this amazing game, others are welcome chime in with their adjustments.
The game is very fast for the 1st 50 games. It will settle down after that and adjustments are more meaningful.
I'm waxing/cleaning every 150 plays or so with wizards mist and shine (JJP uses it on the playfields before shipping), Novus 1 on the ramps and plastics, for now and have 1200 plays. I just recently waxed using PS21 since 1000 grand wax is hard to get for now.
I have my pitch at 6.5 measured from several places around the PF, and took an average.
I upped the lower flipper power by 2 or 3. If you are getting air balls off glinda, either put dead foam behind the target or go down a notch at a time until it stops.
On a clean hit to the ramp, from a cradled position, from either flipper, the ball should easily go up the ramp then slow down a bit after it makes it to the top.
Also make sure the flipper rubber is more towards the top of the flipper bat, this will stop air balls off the flipper on all of them.
I'm using the STC standard flipper rubber still on this game. I might put on the super bands, we'll see how they play.
The castle PF flipper should not be too agressive, it makes it hard to manage the door bounces and loops.
I settled about the default plus one maybe.
I upped the Dorothy flipper a couple and the munchkin flipper 1 or 2. I like the munchkin flipper to do 2 loops on a perfect hit, more than that is unnecessary.
The VUK's needed to be adjusted up a couple notches. Especially the crystal ball one, If the ball bounces out of the wire-form then you go down a bit.
The cross-over wire-form on my game needed tweaking to keep the ball on track (the ball would fall off in a high speed hit). It had a small bend in it that I removed. I also twisted it a tiny bit so that the upper wire was more level and perhaps slightly lower than the lower wire (used a crescent wrench with a towel around the wires to prevent scratching for twisting/bending and some firm hand bending).
Watch the game a bit and see if one of the outlanes favors another and check the left to right level. Or roll a ball down the center and see if it goes fairly straight (hard to do with the roll overs in the way).
I'm sure there is more, this is just off the top of my head.