Ray--first, there are a lot of things you are good at but indicting shitty power meters for inaccuracy is not one of them. It took you, what, nearly three years to add a note to the accuracy section of your Kickr review stating that some users have experienced issues. Seriously? That integrated power meter is so broadly and materially abysmal that all of the trainer apps have had to develop this 'PowerMatch' functionality so users could use another power meter, an external power meter, to fix the completely unreliable one from Wahoo that is included with their $1k product. And don't even get me started on your swooning over Stages, a power toy if there ever was one.
Second, I think you unfairly characterize my assessment as "gut feel". I know how I ride and in my half dozen or so rides with the P1s (and the one race on Sunday) showed me variability in the high level metrics that was exaggerated compared to my other units. If my DZero units had arrived in time I would have run a more robust side by side analysis, but I was convinced enough from the data I saw to date that I just went ahead and got my $1200 back. I like data but I don't do this for the consumerist masses as a profession like you so I went ahead and shipped the pedals back before running several full on multiple unit correlation tests, which as you know are not entirely instructive anyways. It's entirely plausible I got a bad pair, which can happen with any unit. But when it happens with an SRM I know how to verify what I'm seeing at home using basic tenets of physics (and a high quality weight of known mass).
Third, I don't know why you are saying that this is the first you've heard of accuracy issues unless you don't read the comments on your reviews, which of course you do. The comment section of your P1 review is like a de facto support group for customers who are having issues with these pedals.
Finally, your assessment of consumer-grade power meters is that they are prone to issues in general and unreliable as a rule, but individually you don't do a very good job stating which ones suck. Well, I'm telling you. The Wahoo Kickr OG sucks. The P1 pedals and especially the Garmin vectors suck. Stages sucks. Those new Brim Brothers jawns will suck. The one on the handlebars...I won't even go there. Why can't we just accept and agree that there are better places to measure strain than others? And there are better places than at the pedal.
Second, I think you unfairly characterize my assessment as "gut feel". I know how I ride and in my half dozen or so rides with the P1s (and the one race on Sunday) showed me variability in the high level metrics that was exaggerated compared to my other units. If my DZero units had arrived in time I would have run a more robust side by side analysis, but I was convinced enough from the data I saw to date that I just went ahead and got my $1200 back. I like data but I don't do this for the consumerist masses as a profession like you so I went ahead and shipped the pedals back before running several full on multiple unit correlation tests, which as you know are not entirely instructive anyways. It's entirely plausible I got a bad pair, which can happen with any unit. But when it happens with an SRM I know how to verify what I'm seeing at home using basic tenets of physics (and a high quality weight of known mass).
Third, I don't know why you are saying that this is the first you've heard of accuracy issues unless you don't read the comments on your reviews, which of course you do. The comment section of your P1 review is like a de facto support group for customers who are having issues with these pedals.
Finally, your assessment of consumer-grade power meters is that they are prone to issues in general and unreliable as a rule, but individually you don't do a very good job stating which ones suck. Well, I'm telling you. The Wahoo Kickr OG sucks. The P1 pedals and especially the Garmin vectors suck. Stages sucks. Those new Brim Brothers jawns will suck. The one on the handlebars...I won't even go there. Why can't we just accept and agree that there are better places to measure strain than others? And there are better places than at the pedal.