For flowering I'm using a 4x4 tent. I've been considering switching to a different system. I've got a 13x20' room that has a veg tent a flower tent and a mother/clone area. What I'm thinking is doing away with the flower tent and just hanging lights from ceiling and using 2x4s and a tarp to make a tray to keep water off floor. How much does having those reflective walls a tally help?