Tattoos

I have been wanting some kind of calf/shin sleeve type affair for a long time but I was unsure what would be right for me. Now that I know, the only problem is the inspiration is effectively a rectangular image. How do tattooists get around wrapping such a thing around something which is kind of conical? I mean, my ankle is obviously narrower than my leg at the top of my calf. Are they used to working around this or would I have to tweak the design myself?

The problem with legs is they are round and the muscles aren't central. If you have a line coming down the back of your hamstrings it will look like it's twisting round your leg.
Saying that, if the design isn't too big, palm sized, it should fit on the side of your leg nicely.