I didn't have too much trouble up near the armpit, I really expected to, and kinda psyched myself out a little going into it, but really didn't think it was terrible. I'm not heavily tattooed (elbow up mostly covered and a big piece on my thigh), but so far the thigh was by far the worst, really not looking forward to getting my legs tattooed again. I don't understand how people get the backs of their thighs done.
Then again, I've yet to even touch the torso, so I'm sure that will be fun.