The rear clip is removable. The only real "gotcha" is that there are pegs on the bottom of the roof skin that plug into tabs on the edges of the rear clip. You will need to raise the rear edge of the roof skin by an inch or two, in order to slide the rear clip out from underneath. Be very careful about cracking the roof skin at, or behind the windshield pillars. (I cracked mine.)
I removed my rear clip and installed a fastback clip in its place.
[This message has been edited by Raydar (edited 11-14-2018).]