Skeet: There's a way, kind of- drill a small hole, tap it with threads, put some loctite in the threads and put a lighter on it. When you have cooked the loctite a little, put in a grub screw and tighten. This method is rough on some necks (like the Egg, in particular). The best way is to do this in two places, at 90 degrees apart, making sure you aren't on a seam between shells or at 90 degrees to the seam.
Jahlad: Revvy, all the way. Mix and match boards and motors and you will find a fast combo. With ACE, they're, uh, ace.