I have servos with all sorts of lables on them. So far, not a darned one has given me any problems at all. I just don't mix and match them.

For instance, if I have a need for two aileron servos, I put the same brand and model servo on each side.

Other than that, well, I have a plane with a Hitec mini servo on the throttle (no torque needed there), a pair of Airtronics ball-bearing servos on the ailerons, and a standard Futaba on the elevator and rudder. No big deal there, they all work great. It's what I had lying around as spare, so that's what I used.

CGr