Ides,
Your story is similar to mine.
I had the Skin Punch done, and see no need to go farther at this time.
Over the years, I've read horror stories about the sural Test's long term after affects. Even when done by an experienced person, the lasting effects are there 95% of the time. Many have said that the pain afterward (for years) is worse than the PN. I don't need to take that chance at this point in time.
Maybe if my PN really progressed severely, I'd consider it. But just for confirmation? I don't think so.