had to google...
What is the disadvantage of tire siping?
Tire siping will not increase the tires' life. In fact, it will shorten it. The additional slits will cause move tread movement, causing heat build-up. The tread design is already optimized by the manufacturer and siping the footprint will cause the warranty to be voided.
don't know anything about them, haven't run anything but hi-mileage (50-60K) all season radials on every vehicle in 40 years or more.
We get plenty snow here, I driven in some hellatious snow storms too.
as long as I don't pull into a drive or parking lot with 6-8" of snow
(4"-5" in the Bee-Bopmobile) I've never had problem getting around.
One thing's for sure, If I thought I needed siping, I buy an OEM one, not pay some tire jockey to cut up a new tire
if I thought I might get stuck in a hi-mountain pass, think I'd have tire chains
..L.T.A.