Rear-view woes, both styles have issues.
 

-Late ones go loose at mount.

Had late style, but broke the (cast pot metal?) part that goes into the mount, while trying to make it tighter so that it would not wobble.

-Early ones go loose at flip lever.

So then changed to early style, after gluing correct mount (plastic AP store replacement type) onto glass. But it still flops around too much (at the pivot, not the mount).

Any ideas on where to go from here?