Just read the pdf for calibrating iAero with a DFPM. This guide is for Ant+ powermeters only. Mine is the older wired SL version. If it fails in the future then I will pay Saris $300 to replace the internals to the SL+ version under new warranty.
I'm sure some smart people on this board have an answer!
I could calibrate the normal way, but I want my Gen III to mirror my PT which is what I primarily use day to day.
