Re: siping Yokohama\'s
You should sipe the center lugs on those MTRs, does really good things for traction. Siping is great in snow and ice, but also helps on rocks. You are basically adding lots of lateral edges to grab traction. I sipe my MTRs and I used to sipe my BFGs. The trade off is more rapid tire wear, but for me the increased traction is worth it. In snow and ice siping is very important, it greatly improves traction. Siping can make the difference between being on the road and being in the barrow pit.
72 CJ-5: 305 Chevy; SM420; D-300; 30/44 with 5.38's, Warn axles, and Detroits