Thanks for the feedback. I went ahead and ordered some of the prep/activator yesterday, just in the hopes of giving this every chance of working good.
Kevin, there's no room for a QD bushing. As it is, there is roughly .125-.250 space between the hub/pulley and a drive pulley that sits right below it. I suppose that's why they went with the taper lock. And yes, I don't like them either. I've had previous issues with them, but a new bushing always fixed them. This one damaged the shaft a little when it came lose (not a previously repaired one), not bad, but enough that it affects total surface area contact, which the taper lock relies on. With todays electric clutches that hit the shaft/box/belts like a sledgehammer when engaged, it puts a hell of an instantaneous load on everything for a split second. That's where the problem lies, in my opinion.