If you do want to compare the two units, you should do the test with only the left leg pedalling, then you can ignore the crank length discrepancy and the body's power imbalances and you should only be left with the discrepancy due to each systems accuracy.
I think the route of the problem is that single sided power meters make too many assumptions to be of any real use.
If you do want to compare the two units, you should do the test with only the left leg pedalling, then you can ignore the crank length discrepancy and the body's power imbalances and you should only be left with the discrepancy due to each systems accuracy.
I think the route of the problem is that single sided power meters make too many assumptions to be of any real use.