With my P85+ my second set of 265/35-21 rear tires are about used up. My first set I got about 7k miles and the second set about 10k miles. Tesla did a tire alignment and installed the new washers/nuts in between the two sets. I also switch to my 19" winter set for 6 months out of the year -- those seem to be wearing at a normal rate. I would like to get more life out of my tires. What are your thoughts on standard vs low regen and how that setting might impact tire life (if any)? Thanks in advance for your input.