Originally Posted by
RChung
That's interesting. Are these two the same model/brands, or different? What models/brands are they?
Some crank spider PMs (like, P2M and Quarq) produce L/R splits but they can be flaky because of the way they try to calculate the split. That said, some crank arm PMs produce kinda flaky data, too. I've wondered about pedal PMs but haven't had a chance to do a full test on their splits.
The meters in disagreement are a P2M and Garmin Vector 3. Technologically, I have more faith in the Vectors for L/R splits, however, the P2M L/R splits align better with known physiological differences, i.e. leg size and injuries. I could throw a couple other meters into the mix to shed some light (murk?) on the subject, but the discrepancy doesn't affect what I'm doing so it's easy to ignore.