What height are these rings? They are the perfect height for me, but I want some Burris Zee rings, and want to make sure I order the correct height. I'm really thinking these are mediums, but I want to make sure. I still have lots of clearance and probably could go with lower rings clearance wise, but how it's mounted works well for me as I get a good cheek weld. So should I order the mediums or do these look like lows?