I have a few rubber or silicone ones. I love how hard they get me during a long edge session. My only complaint is that I must be very girthy compared to most. Very hard to find a cock ring that fits me. Some end up being so tight they hurt and one even left me a bruise on the base of my dick. Ouch.
Mmmmmm, sounds so sensual! I would love to watch & listen & drink in the musky aroma of you doing this to yourself, but I would HAVE to succumb to the irresistible urge to touch & taste, too!
I used to ride my girlfriend as long as I could and near the end just pull out for a bit. Then I'd go back in and do it a bit slower to prolong my cum. After a bit I'd decide it is time to release and start going faster and really pound her and I'd release much harder than normal. She told me she could feel the difference and it seemed I released more that way also. I was always a squirter and could squirt quite far, hard and, fast, and when I'd delay like this even when she was doing me by hand I shot much harder, farther, and more.
I've done some of the same. Cock and head rings sure ramp up the fun. I wear one of those big stainless steel ones nearly all the time I'm awake. Try a hard cock ring over your balls and cock and a soft rubber o-ring kind at the base with a glanis ring around the back of the head. As your cock swells just before shooting the rubber one gets tighter and makes cumming much more sensational.