Originally Posted by rubiksoval

I currently have three different different power meters. In the past I've had several more. That they're all accurate is important, lest I have to start over with data accumulation and analysis for each and every one.

In addition, because they're accurate, I know that my smart trainer is not (and reads about 10% less). If I were trying to train by the numbers from my smart trainer, or use it for racing on Zwift, I'd have some serious frustration.

The point is, accuracy matters, otherwise the data from other powermeters is pretty worthless.