Unfortunately my experiment with the Garmin auto-detect of doing a Lactate Threshold HR test failed to detect LTHR, not sure what I did wrong. Will have to wait a bit and try one of the other tests. Not relishing the idea of the 20min all-out test so maybe I’ll try the Talk Test instead.
FWIW where I *think* my LTHR is (about 164-166bpm), my pace was also about where I think it is (Half marathon pace), but my power watts at 289w were well under Stryd’s CP (autodetected at 301 currently). I recall reading somewhere on here that CP is more inline with a 30min max whereas rFTP is for a longer duration (1 hour), so in that case the number make sense.