The 180* 'stat will not be too 'offensive' in the winter (just try and do longer, over 45 minute trips if possible).
I plan on installing one when I eventually get around to doing an aftermarket radiator.
Now the Mishi 160* unit,
that might become a 'loading up, carbon buildup on the valves/piston tops/rings, fuel dilution wash down, plug fouling' problem in cold climes, especially in tandem with an aftermarket radiator which
significantly drops the peak temps
all by itself, and with one step colder plugs.