Cages That Tuck Penis Inside (Inverted)

I’ve experimented with various cages—different sizes, designs, and materials. I really enjoy wearing them and the sensation they provide. That said, erections bring on sharp pain that’s hard to overlook, particularly during intercourse with my wife. My erection protrudes too much for a strap-on to work comfortably while worn, though I’m still hoping to make it happen. Has anyone used cages designed to tuck the penis inward? Some feature a ball or cup mechanism that pushes things back in. If these can stop an erection from forming entirely, they might be the solution. I wouldn’t wear one constantly, but it would let me use a strap-on without issue, provided they actually prevent erections effectively.