My left delt, I find a way to hit a vein every m'fing time.....occasional gusher is always fun.
Right delt, no prob. 2cc shot with a 25g 1 inch and it goes all the way in and not a drop lost.
One time last year, I was sitting down, pinned my right delt, I was swollen on dbol and the pin must have been redirected when I pushed in the muscle....well it was a long pin and as soon as I let off the pressure the fukker shot across my bathroom a legit 5-6 feet......freaked me out because the pin was bent while it was in me. No gusher there but it bled.