I have been having trouble getting my Ergomo Pro to give the correct readings. My Computrainer and Powertap agree with each other to within 4 watts through the range 150watts to 400watts (step test and ramp test), but my Ergomo is underreading by about 30 watts.
I am working with the local ergomo agent and talking to the guys in Germany. They believe that the differences could be attributes to left/right leg imbalances, but when I look at the data from my computrainer my leg split is usually 49.6% left leg to 50.4% right leg.
I know that this could be impacted by one leg lifting the pedal while the other is pushing down as the computrainer cannot separate this. But surely this cannot create a 10% difference?