Man, I know exactly what you mean. I have three sets of tires--28c Bontrager Selects with a tiny bit of tread that came on my IRO, 30c Kenda Kwick CX tires that I got for the snow, and some brand new 23c Michelin Carbons. I mounted the Michelins, went on a road ride, and the next day it began pouring snow. I had somewhere to be, and I had time to swap tires but I thought to myself, "Narrower tires cut through the snow and reach pavement better, right?" mostly as an excuse to be lazy. So I rode 3 miles each way on the most summer-ish tires I have ever owned in snow so deep that I was kicking it as I pedaled. If I stopped, it was a hell of an effort to get going again, and trackstanding was impossibly sketchy, but I had a surprisingly good time. Needless to say, everybody thought I was insane. I love that feeling that you get riding on snow when you know that you're moving straight ahead, but your front wheel is constantly pointing some other direction trying to correct for the traction you're losing. Also the insanely long skids that do absolutely no damage to the tires. Snow is awesome.