While looking at a seatpost upgrade on the Thompson site, I could'nt help but notice the Mac Daddy stems they make. I currently have an Easton with a 6 degree rise. It looks like the Thompson has 10 degrees. Is this a noticeable difference. I have a low rise set of bars but want to replace them with a set of the Easton carbon monkey bar XC's. If I go with a 10 degree stem, would I want to go with a flat bar or use a low rise? I am guessing the latter would change my rider position to a more upright position.