Picked up a pair of the Mud 2s. 700x30c, the only size available. At 45 psi, new, they are exactly the same width as my 700x35c Continental Cyclocross Speeds. They weigh in at 330 grams--about 25 grams lighter than my Speeds (which have about 1000 miles on them). They roll fast--not as the Speeds, but fast, and seem much improved offroad. No mud yet, but on wet grass, traction is predictable, and when they do break away, it is linear and easy to recover. Cornering traction and climbing ability is worlds better than the speeds on anything other than hardpack. So far, so good.