I particularly like the shots taken off my PH's shoulder. Especially with the larger calibers. I have found somewhat "meatier" shoulders tend to work best. They are generally attached to "meatier" PH's, but everything comes at a price.
Finally, if the PH has been nice, I will let him put his fingers in one ear. If he's been really nice, both.
Guys, there is people on this forum that take them profession as PH very seriously, so perhaps a little respect "finger-boys" !