Tuomas, I take your word that you've gotten over 400 flights on 9102s; that is a lofty number , indeed. When I say worn out , I mean the pots required replacement . Ben at Radio South said they really needed it . My symptoms began at roughly 70 flights- bounce when the stick was abruptly released and centering problems which required subtrim adjustment to limit.
I just want to be certain others have put reasonable numbers ( 150- 175 flights ) on either of these two (9150 and 9154 ). At this time , I'm leaning toward the 9154s because of the speed , the torque loss isn't all that great... 64 oz.-in. should be plenty for my Focus 2 ailerons , right ?