stonemason,
Here is a cyldrical mapping of a cylinder. This is very simialr to waht you have with the leg. This is what you should get when you do a mapping of it.
Does that help? And no, you hopefully don't come up with a messy projection like your to work with. It will happen, but not the way it should be.
Challenge me and I will try. Because If I should fail, failure also has a prize (Knowledge).