ORIGINAL: DHG
MJD,
Interesting. I have noticed this (imbalance) too, but never explored further as you have. Sanding the heavy side is OK. AMA competition rules allow it, and you'll only need to take off about 1/16" at most. There is plenty of material left, and plenty of strength -- never had a failure with the APCs. But stay out of the prop arc anyway.
Have you noticed that the more "refreshments" you drink, the harder it is to get them to balance?
Not falling off my stool usually becomes the bigger problem...[sm=greedy.gif]