I really like you staying with the 27's. It keeps the ACE looking like one that could still ride trails also and not just mud. There's a guy on here with 32's on a seven inch lift and I really think it made the machine a mud only ride, and a very high COG machine. Yours really looks good as you did it Where are those riding pictures you promised a ways ago?The mayhems are one of the lightest mud tires you can get. Almost no hp loss. I probably could have gotten away with 29.5.