on a related note: ever look at the actual data being written by the garmin?

On my 705 w Quarq, I noticed that the garmin will display (for example) ~400kj for my 45:00 minute moving time commute (48 min total time)

If I upload that to Garmin Connect, it displays as 210w average power (no kj on garmin connect).

When it flows over to Strava, it becomes 215w average and some additional normalized power is also calculated. Strava then shows 550+ kj.

HOWEVER, if I divide the original 400kj by the 45 minutes (moving) time, I get ~150w average power.

IT APPEARS THAT BOTH GARMIN AND STRAVA ARE DROPPING ZERO SAMPLES WHEN AVERAGING POWER. Which to me, is broken. They should count zero power samples as long as moving. Coasting should reduce your average power. Otherwise, I can ride at 400w for 30 seconds and coast for 60 seconds (repeat repeat etc) and end up with 400w average power rather than 166w average power.

It appears that Strava backs into KJ based on their overstated average power numbers, rather than using the sumproduct of (watts * seconds) from the original power file.

When I open/parse/average out the raw data from the TCX (xml) file using C#, I get very close to the ~150w that correlates to the actual kj displayed on the head unit itself.

WTF???@!?!??@!??@@??@?@?@??