I just switched from 275 to 245's because of availability in my tire. I only had the 275's for a few months but at least with my offset - I thought it stuck out a bit much from the well - didn't rub I just didn't like the look. BTW - I have 17x8 and 17x9. Otherwise your setup sounds good - and lots of people would like the look of the 275's or feel that it is worth it for the greater traction. (I would think 255 or 265 would be best - IMHO)