I've not hunted with Mark, but if I had the funds would do so without hesitation. I've spoken face to face with Mark on at least half a dozen occasions, and yes, he is opinionated and somewhat full of himself, BUT....the man delivers. He knows his craft as well as any PH I've met over the years. He does catch a lot of flack, but I've noticed that none of his detractors have ever hunted with him. Those people who have hunted with him have nothing but the highest praise for him.