Andy,


While I can personally testify only for the Bolly Clubman, those GFN props offered by Master Airscrew, Graupner and several other manufacturers are pretty good.

Bollys have a perfect balance (I don't know about others) and I don't remember ever having to do any more than scraping off the casting slag.

But several APC props, considered by most to be the best aerodynamic design, were reported in some threads here to have imperfect balance and even to have the hole drilled askew.


Wood props? The old Rev-Up props were near perfect.