The Goodyear MT/R's are great tires. But they are expensive. Remember, these tires are not mud type tires, they are maximum traction tires like the BFG Trac-Edge, Dunlop Radial Rover RT or Big O Big Foot XT. Meaning that, they are generally good at everything they do, including mud. They should also be good in snow and rain because of the amount of biting edges it has. Siping the center blocks would make everything about the tire better. In a recent aggressive tire test including 3 different types of swampers, the GY MT/R's finished 3rd out of 9 tires. I believe that the new BFG Mud terrain KM's would be a better choice. The 3 ply sidewall is a little thicker than the one in the GY's. The tread is also slightly deeper. The big advantage though is the "diggerlugz" feature on the new BFG tires. The sidewall should have much better traction than the GY MTR. Also the BFG are on average $20 cheaper a tire than the GY.

Mel A.
1995 Land Rover Discovery 5-speed w/ lots of stuff