[Nicname]

Hey guys,

I've been running my e92 for almost 2 years now with my contisport contacts( I never drove in the winter) But now I have to start using the car more and of course, when the conditions are terrible I definitely plan on not driving the M.
Basically I just wanted to know a couple of things...

1. When do you guys usually change into your winter setup?
2. I don't mind using my ZCP's in the winter BUT would it be wiser to have a dedicated tire/wheel combo for winter and one for the summer?
3. What size Dunlop Wintersport 3D do you guys run on 19" ZCP's??