quote"You also have 5 whites under that big "cludge" nut. Electrically this is fine but mechanically it can be a chore to get this all back in there."
Agreed. The big groupings can be split up by bridging a single conductor between two sets of wire nut splices. That one conductor will be no different than the home run conductor. That will make folding the two sets back in the box less taxing than the single bunch, and for my two cents worth, a safer splice than a bunch all stuffed into a big blue wirenut.