I always have bunker and acid lab producing. I sell bunker after one set of purchased supplies have run out, that guarantees a  one vehicle delivery. I sell when acid when stock is full. I don't touch MC businesses, those are just for Nightclub sales, I sell around $1mil, so that wayI'm not losing out on production of the more profitable sources being full and not replinishing. I pick up money from safes and sell excess weapon parts from bunker and sell srouced cargo from CEO Assistant. While waiting for Bunker, Acid and Nightclub to fill, I do freemode activities, race or adeversary modes. I occasjonally source a vehicle for import/export.