Rode a SS1K yesterday, 2015 Wing. I use my Garmin 660 since I'm not a fan of the Wing Nav. Rode 1039 miles according to my GPS, Google Maps gives my fuel stops address to address mileage as 1033, ok nice and close. Wing mileage is 1079, pretty big spread. Could the bike be reporting such a mileage variance per 1000 (ish) miles?