heh I bought exactly same set up after seeing your "my winter tire/rim set up" post in 2009 November. I was contemplating to put them on until we got the first layer of snow.. exactly same experience u had with SP wheels+tires on..... It took me at least 15mins to get back up to my house!! (I gave up going to my lectures that day after sliding around the first corner out of my house)
Now, i drive with so much more confidence with winter tires on! I noticed i lose grip here and there but VDC saves my *** when that happens...
