I have been uploading all my data from the various devices and spend time looking at it and identifying features on the charts that show changes in tempo and the result in HR and power output. The plan I am following has me doing a lot of intervals and all types of hill/power repeats and notice my power in those situations is improving quite a bit. I want to do track and crit type events as I think I am more suited. BTW, I am doing my second FTP test after six weeks of hard work and I am looking forward after resting/light duty for a week.
People are upgrading their stuff and selling off older devices. That was how I ended up with most of it.