I went out and bought a Stab HH90 motor, assuming that it would fit the mount for my Alphastar dish. I should have researched further, because the design of the HH90 doesn't allow the factory mount on the Alphastar dish to mount and also have the ability to adjust the angle of the dish. So, it looks like I'm going to have to build some sort of an adapter, or modify the mount on the Alphastar dish so that it will attach to the Stab HH90. Has anybody else run into this situation, and did you find something factory made to attach the reflector, or possibly a home-made adapter? I'm going to tackle attaching the dish to the motor again this upcoming weekend.