The reason they use hair follicles from the back of the head when doing a transplant is that they are not androgen sensitive and prone to balding the way the hair on top of the head is. Otherwise the hair would fall out again after the transplant. But - the hair you still have is going to continue falling out if you take androgens. A cycle is not really a problem imo, it’s having elevated test over a long period of time that is the most problematic.