I have done searches on here for both and didn't really come up with alot. It isn't in the budget right now but these bows have really caught my attention. I know everyone says to shoot every bow you can, but without that, I would like to hear opinions. I talked to Scott Mitchell at the Kalamazoo show and had a few of his beautiful bows in my hands but couldn't shoot them because of a hernia surgery. And as for the Marriahs, I just recently stumbled across their website and have been looking into them. The thermal definitely caught my eye. As I mentioned it isn't in the budget right now, but I watch the classifieds quite often and don't ever see either. Any info or experience with either would be great. Thanks