RE: YOUR Extreme Flight 68" Yak setup?
My setup is this
Saito 1.50
Hitech 5645's on the ailerons
Hitech 5945's on elevator
Hitech 5945 on rudder
Hitech HS-81 on throttle
Duralite battery system (7.2V 1400 mAh regulated down to 6 volts)
The 5645's are good servos for the money however if I had it to do again I would run 5945's all the way around. And I plan to upgrade battery packs to a TBM 2400 mAh Li-ion pack for more flight time.