Whats the real difference between the calibration protocols of Stages, Garmin, and SRM power meters? Are the discrepancies in their proprietary algorithms and calibration methods significant enough to impact the accuracy of our training data, or is it just a case of marketing hype? Can we really trust that a 250-watt output on a Stages meter is equivalent to the same reading on an SRM, or are we comparing apples and oranges? And what about the implications for indoor training and virtual racing - are we getting a level playing field or a Wild West free-for-all where the power meter with the most aggressive calibration protocol wins?