Though I should write an update after driving over 11K miles and almost a year from the purchase date.
I replaced the original Michelin 4x4 Diamaris after 45,000 miles with Continental ExtremeContact DWS in April 2012. I have a 2006 BMW X5 4.8is with staggered wheels, Front 275/40-R20; Rear 315/35-R20.
These tires are very quiet. The life thread is good. The “S” for snow is still in pretty good shape on all four tires after 11K miles. I took the car to mammoth where there was 8” of fresh snow fall over night. My X5 had no problem with traction, accelerating, and braking. Compacted and loose snow is no problem for this beast on these tires. The car felt so in control and confident.
I drive fast and on occasion I have to brake hard. The only time the ABS went off was in a rainy day when I had to stop on the wide white pedestrian lines. Those white lines become slippery like ice when wet anyway.
The side walls on DWS are a tad softer than the Diamaris. But honestly, I can careless. These tires have so much positive that one negative doesn’t count at all…
I keep the front 32psi and rear 35psi.
My next set of tires will be Continental ExtremeContact DWS for sure…