I got around 5 years and 50k miles out of square Bridgestone Dueler HP Sport non-rft 315's. Rotating helps a lot.
I use factory alignment specifications and tire pressures on the street, auto cross, road course. This is with 10.5" +30 offset wheels. I cannot say if your wheel size is different how the outcome could be.
Steering will feel heavy for a few weeks. More grip.
You'll get used to it.