www.rc-dymond.com

check out their D47 servos, 4.7 grams and 21oz torque. Can't beat that. These are excellent quality german made servos, they would be overkill in that geebee but still come in lighter than hs55's

I have them in most of my planes and some of them have well over 100 flights on them, some of which didn't end as well as i would have liked...

Highly recomended. Wish my lhs stocked them It sucks having to order across the continent just for a couple of servos.