RE: Hitec 5645 servos, Are they good servos?
xjet - EXCELLENT servo post, and right on the money. Brand loyalty means nothing if performance or cost/value compromises must be made. I also have run the 5645's (GP Ultimate, 50cc gasser, all four ailerons) and they were WOEFULLY inadequate in terms of speed, even on 6v system. There just is NO comparison in performance between a 3 pole motor and any flavor of coreless.
I used to be a JR 8611/8411 junkie, like many.
Converted to Hitec 5955 TG's after less than 10 flights on a 30% Yak with new 8611's developed gear slop - BAD.
Now, I just save my nickels and buy the 5955 for any application, just because of the gear train.