Finding negative torque

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Is there a way to find out if my pt was reading un-zeroed on the negative side? Maybe it was just a bad day, but tonight's intervals had a serious disconnect between reported power and perceived exertion, not to mention the power I've been banging out the past couple workouts. So, as always, I'm looking for ways to blame the powertap instead of myself.

Is there a way to find out if my pt was reading un-zeroed on the negative side? Maybe it was just a bad day, but tonight's intervals had a serious disconnect between reported power and perceived exertion, not to mention the power I've been banging out the past couple workouts. So, as always, I'm looking for ways to blame the powertap instead of myself.PT will report negative torque as zero torque, so look for periods of zero torque while pedalling in the raw data file. WKO+ doesn't show hub torque anymore.