About an hour of basic stretches gets my dick into the turgid stage which is when I think about leaving it alone. Thirty minutes in to a session I feel the elasticity, and have the good old jelly flaccid. This is the target right? Before your shaft starts resisting the stretch, and flaccid turtles. Then just keep hitting it that way as many times as possible.
By hand? You can pull on your pecker for an hour by hand? If so, you are better than me. In the past attempts (many times over years), there’s been no way I could put that kind of tension without wearing out. Also, with manual stretching, I could put LOTS of tension on it, but I have worried that the high tension for short periods of time might be counter-productive making my pecker tougher. It’s theory unless one’s making gains. Are you making gains your way? Do you have a picture progress thread? Honestly not trying to start something. I haven’t looked. but I’m open to any gainer perspective.