Glad you have had good experiences with the U of M!! I can give you the name of a wonderful Mohs' doc in Ann Arbor if you private message me. He is not affiliated with the U of M.

I have no idea what HU might be. What is it?
I have had dozens of skin cancers-- Melanomas, basal cells, and squamous surgeries. I am recovering from a nasty one on my mouth right now. My 4th on face.
I have also had many other types of cancers, i do believe that I have a bad cancer gene! But a childhood spent as a lifeguard and on a swim team didn't help, we didn't know back then though!