I've read reviews on Blizzak MZ-01, Piliot Alpin, Pirrelli Ice Directional (or however they spell it). Ice rink testing is fine, but I'd like to hear from anyone who's actually used them. I drive I-70 and US40 over Berthoud pass in Colorado about twice a week. US40 can get quite slick. Oh yeah, 97 2.8Q. Thanks in advance.