Hey Doc, you should have the gear by now. I should tell you that Celestron uses some form of adhesive in addition to the set screw to retain it. I had to let the drive (out of the mount!) cook a few minutes on the stovetop* before I could remove it. Not sure I'd super glue it on though, think I'd rather have it slip than take a quater Moon out of the driven gear.
Had the scope out last night, and the mount performed normally. Conditions were not great, but the stars did not look right - could not get a pinpoint image on bright stars. Maybe the collimation is off. Will try a formal star test soon.