My cage has to come off for my cycling training because the movement of my legs. The solution would be to have a cage that allowed sideways articulation, like a ball and socket arrangement, it could still restrict up and down (erection) movement. I have contacted a custom company but they weren’t interested. It would allow the penis to lie in a natural “I dress to the left/right” situation.
In the grand scheme of things it’s not a problem being released for the ride, it’s not as if I’m going to masturbate or cheat when training hard.
I can keep the shaped base ring on.