I have a 4 Star 60 with a O.S. Surpass 120 without the pump.
Great combination. I have my elevator and rudder servos mounted in the tail. I made the following modifications to my plane. I added 1 3/8 inches to the elevator and I made a Cap 232 style fin and rudder for the plane. I made the ailerons 2 inched straight across. The plane will harrier and torque roll and hover. Also it will do a real knife edge loop and a dead flat flat spin. This was the best flying plane I had ever flown until last Saturday. I flew a UCAN DO 3D with a Saito 100 and a 16-4 APC prop. This is the plane. Period..
Also if you build a 4 Star use 4-40 wire on all control surfaces.