I flew mine with a Saito 72 and balanced in the middle of the recommended cg range and I can cut the throttle to idle and it glides forever. I have knocked the gear out twice but both times were my fault. I use nylon screws in the gear so they break instead of the wood. Both times I was real high (altitude not drugs)and was diving to the runway and pulled up a little late.
Used battery and about 1 1/2 oz weight to balance.
fossil