I have two pair of V3 and recently updated them to the latest firmware. I have one pair on a bike that's set up more or less permanently in a Wahoo kickr. For years prior to the update, the V3 (both pair) reported consistently higher wattage than the Kickr on erg mode (approx 4%). Post update, the V3 is dead on or just below the kickr power. I'm curious if anyone else has seen this.