So I'm supposed to run in HRZ 2 for some trainings and I try to really keep it that way and use the notifications my watch gives me to slow down when I reach zone 3.
Everytime I skip back to zone level 3.0 the watch says I am now in my desired zone. But I expect that to happen once I reach 2.9 and I suspect that this is a simple comparison bug?
It would explain why I end up with a distribution like this.. 
I may be running a lot in zone 3.0, my watch says it's fine but connect web tells me otherwise after the run.