I finally found a decent workaround to avoid getting pinched when trying to put the ring and cage together, by inserting a piece of fabric between the cage and my penis. Now that I’m no longer getting pinched, I have yet to find a way to deal with trying to get the keyway aligned to easily get the lock inserted. I literally squeeze and wiggle and pull and push until my hands are cramping and my heart rate is elevated. By the time I finally get the lock in, IF I ever get it in, I’m so frustrated, agitated, and my blood pressure elevated so that I have lost all interest in anything sexual. Literally just tried for over five minutes to get the lock inserted, to no avail. Finally just gave up and threw the thing back in the drawer. I get that this design makes this cage superior to all others in terms of durability, and that the sizing options are unlike any other, but holy hell this has been a frustrating experience.