How many 24"-36" plants should be under a 600w for optimal light coverage in flower? I think I'm packing em in too tightly and have nice top bud but side budding is lacking a bit in my opinion. I have 9 bushed 36' plants under a 600 on a 3x3 tray and I'm not getting enough light coverage on the lower buds. Will that improve if I only put say 6 plants in the tray?