Full Belts discussion

Alright, here’s the situation. I’ve owned a Neosteel for quite some time now, but it just never sat right on me. I sent it back once to get adjusted, yet it was still no good, and I decided I couldn’t keep throwing money at it. Lately, I had an idea that could potentially solve the problem. It fits okay without the tube piece, so my thought is: why not swap out the solid metal tube for a softer silicone version? If executed properly, this should work well, though I’m still figuring out which material to use. After doing some research, I found that penis extension sleeves sold at sex shops might be suitable. Another option is using a sleeve from an enlarger pump. Since I don’t own any of these currently, I’m not entirely sure about their texture. The new tube needs to be thick enough to offer durability and protection but flexible enough to slide under the belt. The other challenge is attachment—finding a reliable method to keep it secured in place. Does anyone have some good suggestions?