John, thanks for your reply. I am by no means a pro at doing this. I split my tracks back out so I can apply effects (mainly brightness and contrast) to an entire track instead of having to use a preset to apply a change to an entire video track (one event at a time) within the master track.
Based on your reply, I would have to assume that the recommended way would be to ‘fix’ all my individual video footage and then render to new tracks and then combine the new tracks into a multicamera track.