Hm, I'm trying to think out of the box, or rather, out of the vaginal canal. Two issues:
- Having Peyronie is not a 100% influence of a premature ejaculation. However, it does influence when the scarring of the tissues overstimulate a nerve or a bundle of nerve ending. It sounds counter intuitive where scarring should dull the nerve. That's incorrect. Scarring of tissues tend to pull the nerves closer together and cause misfires. Something like sciatica. When that happens, the nerves misfires to the brain and offset the single to fire your load. Correction of the Peyronie issue is a given. Aggressive mode is the Length Master, and less aggressive is the all day stretcher. By correcting the nerves from misfiring, you'll ease up the misfire of your loads.
- In the meantime, premature ejaculation can be controlled. I know it's not healthy for you to slowdown or change positions when you're about to fire in that intense moment with the lady. However, you have to find the offset point. That means you need to determine the 50%, 60%, and 70% chance you will reach your climax. As you mentioned, having a proper position ease up on the ejaculation. Doggy style is one. The penis is forced down and out, creating a higher constriction. Missionary is a no-go as it overstimulates the shaft without constriction, and you'll fire in no time. Spider or 4-1 (you stand and she's on her back) can also overactivate the sensitivity. If she's light enough, how about vertical cowgirl while she's riding you or having her against the wall? Having your physical limits diverted elsewhere, your brain won't have a chance to catch up for ejaculation. Also, a cowgirl position on a chair will also help. When her legs press against your thighs, you're pressuring the sciatic nerves, hindering your peroneal nerve to premature ejaculate. There are also other exercises to prevent the premature ejaculation as well, used my men for thousands of years. I can provide the methods I employed, aside from the Peyronie nerve misfiring issues. The brothers called it edging, but there are many subjects pertaining to it.