I am circumcised, but believe me I get great vibes from what I have left. circular or up and down stroking very lightly with a finger tip and especially with a tongue is fantastic.

I'd be glad to coach anyone wanting to practice this !

Frenulum up until just before I cum, then the glans get so sensitive it's almost painful, almost to the point of ruining orgasm. I have to tell her to either just stroke the shaft only or even just pull the shaft skin back kinda tight and hold it there.

Yep...rubbing my frenulum just the right way makes me cum faster than I care to. It's so amazing.

Same for me, feels so fucking good!

I also like this technique Using a finger tip or finger tips is great on my hard cock. Since I enjoy edging for a long period of time, I do not do this until I'm ready to cum. I study a lot of videos watching other guys stroke to learn more methods.