Thanks for the feedback. Sounds like the yhm will hunt!Dad has a YHM 6.8 upper. His has the 16" threaded barrel, not a target crown. No problems with it and taken several deer, pigs, and a few coyotes. His is a few years old, don't know how it would compare to a new YHM barrel. Only thing I really thought was weird about it was the smaller thread size, but that won't affect your target crown barrel.
My 16" (and now 12.5") 6.8 is an ARP barrel. I have no doubt that H's barrel is better, but honestly both barrels shoot better than we do.