I’d been getting into Z3 probably too much. Today I altered my route and found that on the altered route I could stay in Z2 67% of the time while only spending 6% of my time in the bottom of Z3 5-6 bpm from Z2. I’ve got ADS and am trying to cure that. So can I just do this route for a while and not bother monitoring my HR all the time? I’ll wear the watch and record but I don’t like stopping to check my heart rate because I get cold. I’m snowshoeing and I have to pull my glove back to see the watch, etc … My AeT is 132 and my AnT is 162. Today my max HR was 138 on this route. So the 6% in Z3 was HR in (133-138). I feel like I can sort of tell when I”m leaving Z2. Maybe the feeling that I’m working too hard is as valid as the HR numbers? Or is it better to eliminate ALL Z3 from my workouts even if it means less time in Z2 (because it’s likely I’ll over- compensate and spend more time in Z1)?