I still don't understand your question, are you asking if I turn the Vero 18s off will I see an improvement?
I think that the more light is better right now.
The racking assembles into a 6 ft by 6 ft room that is 7.5 ft tall. I have the space isolated to the roof, about 9 ft.
I actually do have casters on the racking but this just allows me to move the hole room around in my space.