After a lot of poking around it appears that the Plan A tops did not come with the plastic clip. And that they had issues with pinching the top when the metal tab wore through the rubber forward covering. As the hinge rotates to closed the exposed metal tab pulls the top into the hinge.
One reference from Small Dealer from GM stated that a "fix" for the Plan A tops is to grind off the leading edge of the metal tab so it does not protrude and grab the top. However they cautioned to NOT use a grindwheel because the metal used will burst into flame and probably burn a hole in the top if not burn the car to the ground. So cut it off and smooth it off without heating it up. Good luck.
The real fix is they changed the design as the Plan B top which has the plastic tab to prevent the metal tab from wearing through the rubber and pinching the top.
Unfortunately the plastic tab can end up getting grabbed by the rubber seal on the top and gets broken off. Like mine did.
Which is why for either top, applying a layer of dielectric grease to the inner surface of the seal and the bottom surface of the top where it comes into contact with the rubber seal is a good idea. It helps preserve the plastic tab so it does not grab and fracture for the Plan B tops and for the Plan A tops it provides a less friction prone mating surface that will wear through the rubber and expose the metal tab which will then pinch the top which will then . . . .
So, based on what I think I might know now, lube your top where it slides at the hinge point and if you have a Plan B top, verify that the plastic tab is tight and properly aligned. For the Plan A top, check to verify that the metal tab is not protruding through the rubber coating on the forward edge yet, and lube the crap out of the area. If it is protruding, CAREFULLY file the exposed metal tab away so it is not dragging on the top and consider adding your own plastic tab. Once we get some built.