I haven't seen many (maybe no more than 2) reviews of these tires on M3LR (18"). I have just ordered them at Costco ($788 tax included) as the price difference of $400 vs MXM4 is too much for me to justify the Michelin tires. Am I making a mistake? Any experience with these tires? If not, I will report back here how it goes. Potentially, looking at a 3000-mile trip at the end of the month, and my MXM4s are nearly bold at 35k.