Gotta be a better way to do this (Multi-Cam)

I'm familiar with the basic multi-cam sequence setup process, and have edited several, but I am convinced I am making part of my process more difficult than it needs to be.

PRODUCTION SET-UP (INTERVIEW STYLE):

3 Cameras

2 Lav Mics

     - One mic is linked to one of the cameras.

     - The other mic I leave recording throughout the interview and cuts to be used as reference audio for synchronizing.

     - The other two cameras are still capturing room audio to synchronize with lav audio.

WORKFLOW:

     After all importing and general organizing, sometimes the lav reference audio is in multiple clips so I do quick merge of these clips in Audition and bring that back into PP to have one seamless file to sync to.

     I select all footage from all cameras and my newly-merged audio, "create multi-cam source sequence", sync by audio and leave all other options default.

     This is where I get bogged down: the newly-created sequence creates a separate track for every single clip - audio and video (usually more than 20 tracks each). And because I, of course, don't want to see 20+ "angles" when I go to multi-cam edit, I then select each group of clips according to their angle, and nest them in order to get three clean video tracks - each of their respective angle.

     I then attempt to do the same with the second lav audio to condense it to one track. Sometimes I'm able to nest, sometimes it won't allow me to and I don't know why. That leads to me tediously dragging each audio clip all the way up into one track.

     I then create new sequence from this clip, and now have my lovely one track each of audio and video, and continue with my multi-cam edit.

QUESTION:

     What could I be doing, either on-set or in workflow, to save time? I feel like there should be some way I can tell PP to simply lay all the clips into only their respective tracks by angle when I am creating the multi-cam source sequence, and I'm just missing a step.

Thank you kindly!