Servos: Make sure you are at least at 300oz torque. I prefer closer to 400 if possible. I am not nearly as focused on speed. In fact, my preference is around .11-.14 for speed. Which if you look at alot of the top pros, they run that too. For example, Tessman and Cav run the 2274 from Savox....don't have the specs in front of me, but I think it's like .10 at 370ish torque.
ProTek makes really nice servos as well, so definitely check them out.