I’ve had both the LTX AT2 and the LTX MS2 on my ’04. I ran the AT2 for about 40,000 miles and sold them at 6 years old with well over half the tread left. They were nice tires, quiet for an AT, excellent in sand, smooth on the highway. I switched to MS2 and found they are quieter, better handling, and more comfortable, and just as smooth compared to the AT2. I have not yet had the MS2 in the snow, but I was never impressed with the AT2; they were just average in snow. The MS2 are as good in deep sand. waited until the MS2 had about 5000 miles on them before judging any differences, because new tires are almost always nicer than old tires. Neither tire caused me any trouble at all so far, with the usual Michelin roundness, ease of balance, and no slow leaks. I’m looking forward to 10s of thousands of miles from the MS2 and will once again probably sell them due to age rather than treadwear. Both sets of tires were (are) the P metric and not the E rated LT.