Proper grip for stretching

This is probably common knowledge here, but I was wondering what the exactly correct way to grip your cock for stretching? I tried the “ok” type grip just under the head, and it is uncomfortable and wack. I usually just grab the head like it’s a ripcord for a lawnmower… head of penis between index and middle fingers, thumb for stability…and just do my stretching. My head gets a little smushed after a while, so I was wondering if what I was doing was correct.

Oh and by the way, PE works and I’m now a true believer. I sort of half seriously measured myself the other day, and I was almost a full inch longer after six months of PE. Something’s happening down there! Thanks to DLD and his blasters, too!