No winter riding for me, even on one of those days I could ride. The residual salt on the road gets into everything and I don't have a facility to adequately wash it off in the winter. It's just not worth the grief. The end of winter and two good spring rains to wash the salt off the road before it comes out of storage.
I would go with the ACF 50 if you are looking for some protection and you have to ride in winter conditions. Worth the money, as I have a couple of cans.