Great concept, terrible in action - Strike Industries PolyFlex Glock Slide Plate

I had purchased this to complete my pf45 build and found it neat. When it was working, it made it incredibly easy to disassemble the slide during building and testing. I maybe took it off 4x times, than the push tab popped right off. It looks like si put the push tab on thin flex point,causing it to be weak at that spot. On the plus side, the firing pin and ejector depressor is still retained.