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@cjr
So I bought a second hand Powertap G3 that arrived yesterday. It all seems to work, although I should prob get it serviced sooner rather than later. The only thing I'm wondering about is how you all display power readout if you are trying to do a steady effort (turbo session, ftp test etc)?
I messed around on the track at the velopark yesterday evening, and really struggled to keep a consistent power output, even on the long straight. I can't imagine how I would start to do an interval that was within +/- 10 watts of target power.
I'll mainly be using it on trainer road, but interested to hear people's thoughts on 3 sec average, smoothing etc.