To me having both a SS and tractor, the maneuverability of a SS is unnecessary blowing snow, the rigid frame is a negative for traction and the hydraulic transfer of power vs mechanically puts me favoring a tractor.
Now if you have a CTL vs a wheeled machine, it's even worse traction over tires & chains.
Ideally I'd like a front mounted blower pto driven blower and a hydro transmission or in my case, a creeper gear on the tractor. This of course for me would mean another tractor
'cause I'm not giving up my tractor and V plow.
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Who doesn't want another "tool in the drawer".