I have had a set of Michellin Arctic Alpin's on my C240 for two seasons now. I was thinking this year's winter might be more severe (Saskatchewan, Canada) and was thinking of a different set of snowies. The Alpin's are nice but I feel they are more performance oriented than hard core snow tires. I thought the Blizzak WS-50's would be the ones. Has anyone used them? I'm in a rural area and get a fair bit of ice and deep snow. We also bottom out at -40c for a fair while in the middle of winter, but usually more like -20 to -30c.