Every time I have been on the Island recently there has been someone bombing around at up to 20w/kg. What’s worse than the cheating is the constant chat moaning about the cheating, creates a bad island vibe :).
One thought is to apply an algorithm to performance and use a power table to remove suspect performances. There is a more extensive table than this in the Power Meter Training Book by Hunter. This does show what are considered human performances and if linked to HR data this might go some way to helping with the problem.
Apologies if someone has mentioned this before.