I have studied this (and tattooing) quite extensively I have quite a few tatts and would consider this also The only problem with it is that different people heal in different ways I have seen a few examples where it has healed into a non reconisable blob it is similar to tattooing in that it depends on the person and also where on the body it is done remembering that when the skin heals/scars it pulls tighter so imagine the mess of "sailor girls" legs if she was to throw on say 30-40kg's probably wouldnt be a pretty sight The scars also wont heal all the same colour and will "tan" in parts if in the sun alot ie: in australia if you like the look of this or just like looking check out "branding" also