I call this technique 'Beyond Edging' because, unlike 'edging' or 'stop and go', with this tecq, during the 'stop' phase, you are still 'masturbating', just not your shaft or knob.
Setup for session as per usual; you may use porn. As cock starts to fill with blood, with dominant hand, gently circle base of cock with thumb and forefinger. With other hand, reach below your balls, and press on 'cockmuscle' below. Clench your kegels and make your cock 'twitch'. Try to refrain from stroking at this phase; use as little as you need to to get blood to stay in cock. Watching porn and 'urging yourself to cum' will make your cock more eager to co-operate, and you will get a nice hard erection.
The plan is to get your whole package to have full tension, from the tip of your cock to all the way down below your balls, BEFORE you start 'hard stroking' yourself. You 'monitor' the progress of your hardness by the 'diddling' and pushing on your 'cockmuscle' below your balls. As you clench your kegels and make your 'caged cock' twitch, you are really still 'masturbating' yourself, but not stroking. You are 'supersensitizing' your cock, so that when it is fully erect, the first strokes will be 'sharper' than usual. The 'less is more' principle is at work here.
Repeat this until you feel everything is as hard as it can get, and then slowly stroke your cock as you desire, but try not to go too fast at the start. Go as many 'rounds' as you can take, and when you can't take it anymore, finish off with regular finishing strokes, remembering to push on 'cockmuscle' as you orgasm.
This techq gives long, very pleasant masturbation sessions, and the strokes are exquisitely sharp; you may feel sensations in your cock that you haven't felt in years. No anal insertion is used, so you don't have to worry about damaging anything. Your ejaculations may not be as intense as you get with prostate massage, but they will last longer; you cum drools out in continuous large gobs, and the last 'stroke' can last up to twenty seconds. These are 'body shaker' orgasms because so much tension is building and being maintained throughout the session, and you don't 'overstroke' your cock, and hardstroking is only used at the end to finish off.
It takes a little practice to get the 'timing' of this techq right, and you may have to 'circle' the base of your cock with the non-dominant hand as you stroke with your dominant hand. The 'secret' is to maintain contact with the 'cockmuscle' to monitor any 'loosening of tension' in your cockmuscle. That signals a 'round' of twitching the caged cock', which is what I call going ' Beyond Edging'. ENJOY !!