ORIGINAL: Shui
Ha ha, yea those are always a good thing, they seem to help increase the flow to feed that monster motor!
Oh yea, balance I used was remove the canopy (UAT full) and it should rest on the nose, slight tap to lift the nose and the tail should touch and stay. If you need down trim with full flap you could have too much flap or be too tailheavy - just my opinion, what do I know about UB's anyway? lol