Siping would help, but as soon as summer comes back around, I'd be worried about having a tire that would come apart in chunks. Plus, as nKoan said, the biggest difference between winter and summer tires is the compound. Sure the siping and grooves help a winter tire dig into the snow, but it's the compound that gives it grip in the cold that's most important.
IMO it would be better to spend the money shipping your winters to yourself than to spend the money on siping. Can you get someone to ship your winters to a location ahead of your route?
__________________
Is you is, or is you ain't, my con-stit-u-ints?
|