Jelqing time? What’s too much?

Why have I seen many times veterans talk about jelqing for 15 min maximum or that anything longer then 20 minutes of jelqing is useless/counter productive.

Obviously I’m speaking upon already being well conditioned, but why is it not any good to jelq for longer periods of time?

There was a well known member on PEgym, that had gained a large amount of volume and he had talked about a routine where he would jelq for up to an hour straight with edging inbetween. He gained inches in length and over an inch in girth.

What about multiple 15 or 20 minute sets of jelqing inbetween other exercises all in the same routine? Using timing as a precise tool.

What’re your guys thoughts?

I’m a great believer in the power of jelqing, and I often jelq for up to 30 minutes. I think the issue is that you reach a point where your returns start to flatten out and then even begin to decline (if viewing this as a graph). When I hit that mid-point and then go beyond, I start to chafe up and get sore—effectively taking me out of the game for the next couple of days.

My routine varies. Usually always 20 min though, 3 days on 2 off, 1 day on 1 day off, 2 days on 1 day off.