My experience with Stages was not good.
I had a Gen 2 Dura-Ace 9000.
Power fluctuates a bunch (even when keeping steady), unit it prone to dropouts.
I would stock to a proven crank based powermeter.
Pretty hard to beat a used SRM, though a Quarq or Power2max is not a bad option.
Does anyone have some basic reading on analyzing your power data?
Ended up grabbing the stages, and its pretty cool having the ability to see this stuff. My numbers seem better than I would have expected (I think) so it is good to get my bearings at the end of season, so I know where I am at the beginning of next. Unfortunately that means I need to do some more "formal" intervals right now, which I am lacking the motivation for now. Also shows me that my real task may be more weight loss than anything.
This is the classic:
Amazon.com: Buying Choices: Training and Racing with a Power Meter, 2nd Ed.
What software are you using?