Gonna do either a snow DS or a snow SuperD. They are doing a DS if the snow is packed, and a SuperD is it's not. Can't have studs bigger than 1/4". What do you all recomend for tires or for doing studs. I'm thinking of taking some old 2.6 specialized rollers(the ones that are super fat) and sheet metal screws, but i'm totaly new to snow on a bike.