Wowbagger, Hitec aren't renowned as the greatest servos, however their value factor is fantastic.
My recommendation if youre going to use hitec, go way overkill. I had some 645 Mgs in my old 32% ultimate, torque wise they shouldve been plenty, never really had a problem with them until i had one lock up at full deflection, killing the model ... cause of this was something do with the gears, i think one of the spindles or spindle housings failed but cant be certain... the gears were a mess anyway!
I've heard good and bad on the digis, theyre supposed to be better than the 645s i was using, however, if i hear that something i try to stay clear.
I speak very highly of JR digitals, had 8411s in my 2m funtana for 2 years now and theyre still going strong, although they could do with servicing now, the gears are all but worn out!
If you've spent a lot of money on the model, spend that bit extra on servos, in my experience i think it might've paid off to get JRs.
Nathan Farrell-Jones :
www.3drc.info