I have had OMC's for a while now....nothing like them. Loyal, Strong, Smart and Gamey as all get out.
I just sold a good finished male and am training a female pup daughter of his. I raised both parents of this pup, now it's her turn. She treed the other day with our big old walker male and I really think her machine gun chop hurt the ol boys ears.

They are awesome, and to answer your question about where they were derived...the orig. mt. cur is the original american dog. They have been traced back to the indian and has been said to have given the plott hound it's brindle color. The cur blood is strong as many other breeds have been introduced and they retain the usual features...except color variances. Some breeders say it takes 3 off line breedings to begin to get rid of the cur look. Ours are from one of the oldest documented pure strains. I love them curs!!!