Originally Posted by Dr. G
If our winter this year is anything like last years, you could run 20" winters with 285 in the back and have no worries haha.
Generally speaking a square setup will work "better", but that doesn't mean mean the staggered setup will be bad. If the areas you drive in are generally plowed you'll be fine.
Ground clearance will become a problem before your 255 rears do.
I also have xdrive, so the car just rips through snow.....