I'm just wondering, what happens to the back of the head after a strip is taken out? The remaining hair still has to cover the same surface. A simple logic tells me that the scalp stretches. I've done 3 transplants already. I think the back hear line has gone up and what concerns me even more the crown area has moved lower, so it now seems like the bolding area on the crown is bigger (because I think it has stretched too). Is this the right observation?