After ejaculation, it still goes down.

That’s the biggest part I was wondering about since it’s basically a meme that men take it and last all night.

I’ve got great control over my pubococcygeus muscle as it is, and I’m fine with how hard I am and how long I last. Don’t think I’ll bother trying it unless I develop ED.

A good way to strengthen that muscle is to repeatedly stop and start your stream when urinating.