Well, for a start I’m uncut and don’t seem to have problems stretching with a foreskin. My foreskin remains over my glans while stretching, since I’m completely flaccid during the stretch.
I don’t over stretch, I just pull until I feel a nice stretch. I could pull as much as I wanted, but I like to play safe. I use a grip with my thumb and 2 or 3 fingers, being careful not anchor my grip on the glans. The main force of the grip is on the sides, with the arch of my hand at the top, and tips of my fingers at the bottom of the shaft.
Now, the reason why we don’t use the glans to anchor, or apply too much pressure to the top of the penis is:
The dorsal nerve of the penis, as well as the dorsal veins and artery run along the top of the penis. This is the main reason why we try not to apply pressure to the top of the penis while PEing. When you Jelq or clamp for example, you are always advised to not apply pressure to the top or bottom of the penis…. the bottom because of the Urethra.
Now, this dorsal nerve continues the length of the shaft and ends on the glans of the penis. By griping or anchoring your hand on the glans, you risk detaching this nerve from your glans, thereby reducing your penis to a withering, unresponsive, piece of flesh, for what could be the rest of your life.
Another result of this, would be me and others having to read approx. 50 pages of an injury thread, where the said person who fucked up there dick, blames everyone, except themselves, for their dead penis.
These exercise have been designed with your safety in mind. Majority of injuries happen to newbies, who think they know better.
Smiley face :)