That's about right. According to him, I have about two inches exposed. His stock response is that the nerve will do what it wants to do when it wants to do it. He's a caution he is.
He did a nerve conductivity test before the surgery and wants to do another in six months. He guesstimates that I'm at 80 to 85% now. It was less than 15% before.
It has to regenerate the nerve covering as well...every "rub" on the exposed part creates pain...but you already know that...