I run 30" ATs in the summer and 31" MTs in the winter and the power differance is more than you would think for just a 1" increase. I still think the power with the 31s is livable enough that when my 30s ware out I will replace them with 31s.
Dennis


95 Sportage, gone but not forgotten.
98 Jeep TJ, 4" Zone springs with RC Long arms, Ford 8.8", 4.56 gears & Detroit locker rear, D30, 4.56 & Detroit Trutrack front.