Paul J.
As a programmer I think it's way too…
As a programmer I think it's way too expensive. Lots of charts - the majority of them seem a bit meaningless to me. I track my steady runs and rides by heart rate and pace/power - when I run/bike at a reasonable pace/power with a low heart rate I know I'm in shape. I also know my 400m swim time and my bike FTP - I have no need for anything else.