Cage Tug on Testicles During Sleep? Need Ideas

Like a lot of people, I struggle with my cage tugging at my testicles during sleep. My penis tends to push the device away from me, causing discomfort in my balls about four to seven times each night. I’ve experimented with various approaches: using oil versus no oil, and positioning the cage either high or low. The images below show more details regarding two specific devices: a Steelworxx Crossfire and an affordable Birdcage from eBay.

I also own a Bon4L that I wore for one night; its material seemed to grip my skin effectively, preventing the cage from sliding down. However, with this particular model, I rarely achieved full hardness. My main gripe is that it’s quite hard to clean, so I really prefer steel cages.

Is there a solution to prevent these slides and allow for erections? Both of my steel cages currently use 50mm rings. Would reducing the ring size make a difference? Are there other cage models that might suit me better?