I am because it often gets below freezing but rarely snows in the winter here.
Michelin Pilot Sport All Seasons in 285/35R19 and 325/30R19 fit just fine.
Based on my recent experience shipping a car from Japan to the US:
It's impractically expensive, unless you're the kind of person who really needs your daily driver Bugatti with you.
It's a major pain in the ass to prep for shipment and passing through customs.
The shipping company will...
Yeah, Pilot Sport A/S 4
285/35zr19 Fronts
325/30zr19 Rears
Front will have a bit of stretch and the back will be a bit pudgier but you wouldn't notice if you weren't specifically comparing.
Finally pulled off the Cup 2s and replaced them with Pilot Sport A/S 4s. A necessity after seeing how cold the next weeks forecast is. The fitment difference is subtle. Rides nicer on the street.