actually, tire wear front vs. rear is something about the overdrive too. So for ex. when you use 24t pully with 1mm split, fronts will wear more than using 2mm split, because its dragging. and you also feel more comfortable with some overdrive at front. so, if you want your front tires to wear more equal to rears;
you can use less split,
use solid at front,
some softer tires at front, or harder at rear. maybe f37 r42. i havent tried this but makes sence since the car has understeer.