Hi to all. Made it through the thread and appreciate the info. I am about to start my first ever grow, and after doing extensive research, bought a DR 90 T and will be using the latest Hans LED panels. Thanks firsttime, and if you are still around, maybe you can update how the tent worked for you. Mine came with the black "flooring", which I put in, then took out, and now I will put back in. As the lights are LED, I will not be running any ducts or fans and worry that the unused ducts will present a light leak issue. Did you ultimately have any light leak issues ? One of the last things that I will be doing prior to starting is try to cover them with ?black mylar/plastic and tape ?? Thanks, GYF