Thanks, Garret. I have read that the nose breathing can be a weaker indicator, especially when you do not have ADS. So, that makes sense for you. I have also read others who have no problem nose breathing in the 160s. So, it must be individual.
Thanks for mentioning the drift test. I should have added that my drift test shows ~5% at an average of 130bpm over a 9.5 mile flat course. So, at least for me, the drift test is more consistent with the VT1/nose breathing/perception of ventilation rate and significantly less than the lactate results.
It’s really a 20bpm difference (130bpm vs. 150bpm) and that’s what has me so confused. Until I figure it out, I’ll probably stay near 130.
I suppose I should do a warm up and do a drift test at 150bpm to see what happens. I suspect it will be higher than 5%, but it is worth a try.
