Well, I decided to take a chance and try out the Matador Hammerhead brake. I am always hesitant to buy something that isn't well tried and tested with lots of online reviews, but I like supporting Canadian businesses and the sale tipped the decision point for me. Hopefully this isn't one of those brakes that impacts accuracy and barrel harmonics (like the old style XCR-M brake from Robinson Arms, man that thing was junk). Any reviews of it out there?