Difficulties with wearing a device? discussion

Hi everyone. I have a few chastity gadgets, such as the “Impound Spiral Male Chastity Device,” the CB6000, and another metal piece that isn’t really worth talking about. I’m using them to explore tease and denial. Every cage I’ve tested shares one common issue with me, which others have also noted but perhaps not fully grasped.

I’ve experimented with every ring size offered for each device, yet none fixed the blood circulation problem in my scrotum. When I try to erect, the blood appears trapped just under the penis base within the sack, causing it to swell until I worry about harming my testicles. It hurts significantly and feels very uncomfortable, creating a lot of anxiety that makes me want to stop… yet I return to it repeatedly. I simply cannot wear one for extended periods.

Narrower rings prevent the device from sliding off so easily when soft, but they make the swelling worse.

To start with two questions: Is this actually causing damage? And would sticking with long-term wear help resolve it? Thirdly, is there a specific gadget that prevents this issue?

If I’ve already addressed this in another thread, my apologies. Please do share the link if you can. Thank you for your advice.