The one on my shoulder never hurt but i had that done when i was pissed at 18
Then i had one designed for me by a mate and i took it in the shop and asked them if they could do it at the bottom of my back which they did!!! But

I had to sit on the chair the wrong way round and i have never gripped any thing so tight in all my life my nuckles turned white lol

The out line felt like he was sitting there with a stanley blade doing it!!!

But the colouring in wasn't to bad! Was probably worse as was right on my spine!!! lol