The reason I went to the same surgeon for additional grafts was mainly because he was willing to do it for free. As a good gesture, I thought he deserved an opportunity to correct the problem.
Should this does not produce acceptable result (I am already skeptical), I don't think I would go for HT. If I do, it won't be the same surgeon no matter what. However, my experience highlights the prevalence of incompetent "guys" in this industry.