I honestly haven't had experience with that lift, but if you post about that in the mod section for lifting: http://www.ramforumz.com/forumdisplay.php?f=14 hopefully others here can give you some advice on that. Lifted trucks always get my vote lol, so good luck and definitely keep us posted!
Have you had any experiences with ICON lift kits? They offer a 4-1/2 lift, and are supposed to be some of the best riding lifts on the planet. Any thoughts? I was dead set on 6 inch lift with 37s, but that may be too big.