Wow you're making good progress on the design, Wolfmarsh! Love the cover page of your document!
SmallCoverPic.jpg
Obviously it's early in the process but I worry that the third level of Mega Maid multiball might be impossible to reach if you have to hit the five drop targets in order, at least if they are laid out parallel to the shooter lane as in your earlier sketch... If you have enough room when you're laying out the playfield, you might want to try angling them toward the flippers a little bit.
Don't worry, once you get the whitewood up and running I'll be over there all the time play-testing it for you and helping you work out these little nuances....