Power Meters / Powermeters (SRM, Powertap, Quarq, Ergomo, Vector, Stages, power2max, P2M, 4iii, InPower, Cinch)

I'd be fitting vectors to the same chainset as your mate's. Is there no allen key option to install pedals? Sounds like it's not a very good idea, if I want to swap them from road to track bike at least once a week.

If you're really interested I have pics and details of the clearance issues. He hasnt had any problems. But Garmin require more clearance than he managed. The plug port is covered buy a rubber bung, that could catch the chain if it wobbled. This has however not happened, and we were unable to force it to happen on the turbo.

The plug port is position wher you would usually have a allen key hole.

There is a tool that will fit a torque wrench. But it seems to be a US thing, and tricky to get here.

Hes travelled with them, and its been fine. But if you install a pedal slightly lose. The data suffers.

Maybe Stages have plans to increase the accuracy of their product, or develop a professional level product to sell at a premium price to over weight MAMILs to record their Strava times on, and thought that partnering with Sky could help them achieve this.

I doubt that Stages as is, is accurate enough for Sky, but I don't know enough about power training to know if this genuinely matters. (My view, which I'm happy to be disabused of, is that as long as you're using the same product for all your power training purposes, then the actual genuine power figures don't matter, as what you want is consistency).

I would have thought the question is whether they need to compare riders in terms of absolute values.

Individual ride to ride suff would be fine. As would comparing the shapes of power charts between riders.

TBH I doubt its rocket science to calibrate out any error between riders