Got out for 5 miles today, my first snow run this season. My Brooks Mach 11s worked alright but figured I should prepare for worse conditions. A trip to the hardware store to get sheet metal screws and five minutes and I'm set. I use #6 x 3/8" screws and base the pattern off of the wear on the shoe. I could probably skip the heel screws now that I land mid to fore foot but I'll take the cheap insurance.