I went from the stock tires to the M-12 front and s-12 rear combo. At first I loved the front, hated the rear. However, the more time I had on the s-12 rear, the better it got. I know the tire didn't change, but I got used to it. The only thing I still do not like is the tire seems a bit unsettled on extreme hardpack. It keeps your attention level up for sure. I have heard quite a few complaints about the M-12 rear, I would never buy one. I have a couple of buddies who ride the Maxxis rear and love it. Seems like a good tire. I will stick with my s-12 rear and m-12 front combo. Seems to be a very good all around and they have excellent wear characteristics. I dont't think I would use the s-12 front, unless I rode in mud or sand everyday. These are too unpredictable in anything else. Lay-tur.