I've shot half a dozen of his bows. All have been incredibly nice. There was one with...what I recall was a desert ironwood riser and action boo limbs that I shot far better than my own long bow...consistently. I've never seen or shot a bow that suited me better. I begged my buddy to sell it to me, but he wouldn't- Which I figured, since the bow was marked "To my good friend _____" but I had to try.
He told me Herb would make me one just like it, but I wasn't interested. I'm not convinced any other bow would have the same "mojo" as that one did. Besides, if I'm paying out the cash for a custom bow, I don't want to have one made "just like my buddy's"
Another friend tried, tried, and tried to get Herb to make him a 3 piece out of black micarta, but Herb absolutely refused. That particular buddy of mine can be remarkably stubborn and persuasive, but he lost that one. I guess Herb had tried micarta before, and had a few of them fail. (a small proportional number as I recall, but..perfectionism IS something we all appreciate in a Bowyer...)
Thankfully there's no shortage of wood that he's willing to work with. He's still on my short list, when the day comes that I can afford a custom bow.