Just got my new 600 on Tuesday and got to put a whopping 4 miles on it before the temp hit 50 again! (nothing new this year) Love the SDI so far. I was reading in some other post on plug fouling and some guys mentioned a trick when starting them cold. Sled came w/ 8ecs's and I haven't picked up spares yet but from what I hear they're pricey. Anyone have any tips?