IMO 7965MG for t/b servo.
So far it has handled plenty of hours on 2S Lipo unregulated and its one of the fastest if not the fastest (non-hv) servo in the Hitech line.
I believe its .08 the HV's speed servo will be .06.
It's a great servo and has plenty of power and is smooth as hell. I love it just wish it was made in a TG setup, but o well the High Voltage series is releasing from Hitech finally this month.
Price tag starting at 159.99..