I have excellent agreement with quarq and power2max spider powermeters. Much less agreement with pioneer and stages single arm powermeters. A buddy has single side garmin mtb and it seems way way off. Might be defective though. It’s just not in the same ballpark in our tests.
Thank you again for all the input! My Favero Assioma Duo-Shi arrived today. I installed them with PD-M520 pedals. (please see my post in the other thread for more details)
First impression is great, I will test them over the next couple of days.
You will like the Assiomas. They are by far the best PM for the best price I’ve ever seen.