Its never goes well replying to these but here goes…
I’ve done about 40 races and probably the same amount of group rides (main ADHR and Audax 100k A). I usually race B, but haven’t raced since March and I suspect I’m probably A now. Last race on Zwiftpower was March; though I may race more now since racing and ‘group ride’ season is over.
My point still stands than not all power meters are created equal. There needs to be a process to verify all the meters. An event can have 30 devices but one may be so far off that someone will get a free Jersey or not have a chance. Maybe that happens already…