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@hippy
Strava power estimates are worse than shit. You have an SRM ffs, what are you doing with it?!
You don't need to do an hour, there's plenty of test protocols to use.
Well, Dr Coggan kindly made a list of these, titled "the seven deadly sins" and posted them to the wattage forum in June 2004. Here is the original post reproduced:
"the seven deadly sins....
...er, ways of determining your functional threshold power (roughly in order of increasing certainty):
1) from inspection of a ride file.
2) from power distribution profile from multiple rides.
3) from blood lactate measurements (better or worse, depending on how it is done).
4) based on normalized power from a hard ~1 h race.
5) using critical power testing and analysis.
6) from the power that you can routinely generate during long intervals done in training.
7) from the average power during a ~1 h TT (the best predictor of performance is performance itself).
Note the key words "hard", "routinely", and "average" in methods 4, 6 and 7..."
http://alex-cycle.blogspot.com/2008/05/seven-deadly-sins.html