Well, snow hit us pretty hard and got about a foot in the high country.

Ran 30psi and didn't have too much of a problem on the road. It was when the old '82 Chevy conversion van passed me running street tires that was embarrassing. <img src="/forums/images/graemlins/lol.gif" alt="" /> My truck just couldn't handle the hills ad was breaking loose and losing power (8K elevation)....unfortunately there was no place to slow and put the rig in 4HI prior to getting to those hills...oh well.

When I hit the trails things were OK. The heavier trucks seemed to have very little problems with steering in and out of the snow ruts. My rig had such a lightweight feel to it...it bounced around like a pinball....it was fun though. <img src="/forums/images/graemlins/notooth.gif" alt="" /> It was around 2degrees and the snow was hard.
I think I'll look into the siping idea. I agree that there are a lot of variables. That's why I have a garage full of bicycle mountain bike tires that I used for racing....a pair for any conditions. Too bad truck tires ain't cheap...I'd have a garage full of them too.LOL

shaggy