pdq: "The word "siping", as a verb, means "to make many shallow cuts in the contact sufface of a perfectly good tire". {my definition, of course}"
yes, you can buy them 'siped'..The best for winter! We have both winter and 'the rest of the year's' tires. I'll forgo any disadvantages, because they are so great in the winter! Try some, you'll swear by them!