
It seems that since I got it back, however, I have this mysterious tailwind that follows me everywhere now. I've ridden out & backs and loops, on both windy days and calm days, and on each of them, there is a consistent tailwind. Even in places where I *know* I was riding into a headwind, I get no headwind showing up on the post-ride graph. I'm generally sure to do a wind offset before I ride, fwiw. I'm finding that on flats, my power numbers, both pre- and post-analysis, are lower than I would expect (or at least hope

Could the new case be a potential source of this tail wind reading? Would doing a new calibration possibly resolve whatever issue I may be having?
Appreciate anyone's advice.
Jim