I completely understand that but a tire that is only 1” taller all the way around (2” oveeall) isnt going to make much of a difference. Maybe if you start getting into 2-3” difference towards the ground i could see it. I think i worded it wrong but i meant that a tire in the same brand at the same width and close to the same height (1-2” overall difference) at the same pressure will have virtually the same contact patch. But i think for all practical purposes on what the op is trying to gain it wont change the et much. You could simply lower the pressure of the shorter tire. I was reffering as a general stand point. Especially in a drag radial where the sidewall will forgive less it is almost irrelevant, in a bias slick i could see where it would make a difference. But there has to be a point where depending on air pressure both tires could have the same contact patch.
