FMLFML85
"Also do you have any tips on how to immobilize the head of your penis for the shot and where to shoot into penis/depth"
I have done this twice now. There may be a minor improvement, maybe not. Not up for a science project,yet
Erection definitely lasts longer, though. Not necessarily a good thing.
I used an Inject-Ease which I use about 25% of the time, anyhow. The rest of the time I free-hand.
http://www.ambimedinc.com/inject-ease/The insertion with the Inject-Ease is 100% painless and then you can control dispensing.
I held my glans very tightly with my left thumb and forefinger (making an OK sign)
And looking down at the top/smiley face of the head injected at about 4:00 and about 1/4" in from the corona.
The second time I did it at 7:00. That time there was a tiny blob of bleeding that stopped with pressure.
Like I had said earlier. It was an experiment. The head was a bit bigger, but not dramatically so.
It had no real downside.
But it doesn't seem worth making it part of the routine.