with the prokit, the 275/40s do a good job of filling up the wheel well. since the wheels are 18x9s, the same tire was chosen for rotation purposes. however, now she is wanting the car lower. i was just a little concerned with that size tire and lower springs, there could be a clearance issue (or it may look odd?).
as you guys said, a 35 sidewall would be better with lower springs but these tires have lots of life left and hate to replace.