Hi, I've noticed my pick tends to rotate towards the bridge when strumming. I tried several makes of picks (Star picks, Dava picks, Elixir, Planet Wave, Dunlop) but to no avail. I hold the pick normally between the index and the thumb and do not understand what happens. I constantly have to push the pick back into position (every 10 seconds or so) with my middle finger and that's awkward and distracts my playing. I am ready to accept that my technique is wrong but don't know what to do to correct it :-( Any advice? Thank you for your time.