From reading, it seems as its gone from off road racing/ice racing, to a new mkting angle...Discount Tire, a widespread chain, pitches it on their website, with 'data' showing improved snow performance when done on 'all season' tires...hmmm.
~$60 a tire, and it does seem to void the oe tire warranty, which makes sense.
The OP might consider picking up a set of cheapazz winter tires, or even a set used a season, and installing them on his normal wheels...or, try the siping and let us know.
I lived in NJ/NY from '74 to late 2001, and though I always had a set of snows on the cars, for winter, 'winter' is really shorter and only acute vs. long term, in the 'burbs there, and where was has to go/get to, imo.
GL,mD
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