Ironic.
Youre telling me about Western Michigan Winters.
I spent 20 years 12 miles North of Whitehall MI (Shelby)
I have a summer place at Silver Lake. Currently I am 50 miles south of you now near GR.
Back to the tires.. I noticed the last couple days the Kumho's make more road noise than the michelins. Mine were ordered from Race Track by Belle Tire and installed by Belle tire.
My experiences are the opposite of yours. I switched lanes leaving the tire place and thought the tires were vague/slushy.. I found they had 32 PSI / they looked low to me.. I ran them up to 50 PSI. I recall thats a pound or two under the Max written on the tire. Thats what I am running them with.

Well, its 21 degrees...now we just wait 6 months for Summer..

__________________
Steve Danville
what i did myself.
CPS
rear shocks
MAS x 3.
SparkPlugs (twice)
Fuel pump & Filter
Window switch
replaced both failed horns with Honda horns.
Cleaned ERG Tube
Oil changes
Oil consumption Fix
Brake Pads
A/C Recharge
Anti-Freeze change X 2.
Front Shocks. Monroe. $90
Mercedes Warrenty Work:
Harmonic balancer,power steering clamp. Cat converters.Drive Shaft Bearing.s
Replaced Outer Lower Tie Rods and front lower ball joints at 156,000 miles