Suggestions for a device suitable for my loose scrotum

I’m struggling to locate a device that suits me. Before committing significant funds, I’ve been testing out various inexpensive models and clones. They all function reasonably well during the day, but the early morning erection at 5am seems to be the real issue. Having worn one continuously for two months now (24x7), my body should have adapted by this point.

I own a couple of metal devices in standard length, yet they pinch badly even with plenty of lubricant. They also tend to slide away from my body, pulling my scrotum tight against its limit, leaving me with nearly full erections that are mostly contained within the steel.

I figured a ‘nub’ style device would solve this by stopping erections before they fully develop, so when an HT3 nub copy arrived yesterday, I decided to give it a go. In my regular metal devices I use a 40mm ring, but for this one I had to opt for the largest available ring because skin passing through between the tube’s side and the ring was being pinched too tightly, cutting off blood flow. This morning I woke up without pain despite having a full erection. When warm, my scrotum seems very flexible, allowing the ring to slide down enough that I am fully erect with just the nub covering the glans.

The most comfortable option is the Birdlocked because it stays put, but it allows too much stimulation to be truly effective at preventing anything other than penetration.

For practical reasons, I really can’t wear a full belt. Is there any device you would recommend that might work for my specific situation?