Just thinking of moving up one size. The previous gen had 255's and the 245's look a bit wimpy. I realize there may be a slight penalty in MPG but thinking its only 0.4" larger in diameter and *2lbs heavier (ex. Latitude tour HP) maybe 1mpg? *We tow a 3500lb trailer occasionally plus lots of gear so the heavier load rating (111 vs 104) is a plus. We will be putting on a new set this fall and it looks like most of the same tires come in that size also. Thoughts? Anyone else sporting that size?