Still shocked you didnt get any rubbing with that wheel set up. Did you take any passengers and such? The fenders had to be sitting on the tires when you put 500 lbs in the car to do the alignment.
I had 20x10s on with 275s and it was miserable despite everyone's best efforts. Moved to the 255s to save that 10mm width on the outside and it made all the difference. Congrats to stance on getting that width to fit on the f30.
Car looks great by the way.
I have to agree with the H&R sport springs. For anyone that would diss a drop, has not driven in a car with the sport springs. My ride is 10 times better than it was stock and by not going super sport I can still pull into any driveway I want without issue.