> The video can be seen here: https://youtu.be/S9SQcUxMJ8I
Aha—I was picturing something completely different! :-) It looks like what you need to do is perform color corrections for the different hues each time the color wheel changes, and then automate those (gradual) color corrections. This is beyond my limited FCP experience (I'm really an audio guy) but it seems like that should be doable with Keyframing, as per the video below. Obviously the color corrections you'd have to make would be much more drastic that what he does in the example, but it seems like that approach could get the job done. Perhaps if Iain (the course author) notices this thread he might be able to weigh in with some more specific advice..