Cock rings certainly help me last longer. My usual routine now daily is to put on an Oxball cock sheath or ring and edge for up to 90 minutes. I really enjoy the feeling of my cock getting hard, then softening, and then hard again. I like the feel of restraint that my cock ring provides. Since I retired 14 years ago, I've "discovered" more about my penis than ever. The feeling of precum oozing up through my urethra and leaking out my slit is very nice, something I didn't appreciate or even notice much in my earlier years. I also practice ruined orgasms which I find especially exciting. I'll edge for 60-90 minutes and on days when I'm greatly aroused, I'll start rubbing and pressing my taint. When I hit just the right spot, I'm able to stimulate my prostate externally. I'll use one hand to do this and then the other I'll simply wave or shake my cock - I don't stroke it. It won't take long and the precum will really start flowing - slippery, clear fluid. I sometimes stop shaking my cock and catch the precum with my hand then slurp it up. Deliciously sweet. I can then relax for a few minutes and start the whole rub-the-taint thing all over again. It doesn't take long and precum starts flowing heavily. The feeling is exquisite. I'm able to perform this up to 3 times before I'm so aroused that only jacking off to orgasm will satisfy the urge. Then, it is a normal cum - white and gooey.