I did last 2 grows.  Hang it,do your harvest you wont be hanging buds cut em off the stem and put em in the rack. I put the rack in the darkest coldest place in the house I could logicly use. Single layer. You can run your hand on the underside of where the buds are to rotate them. I don't think that needs to be done. Nothing was flat (no flat buds). It took about the same amount of time as hanging them. I did 1 dry trim and 1 wet trim. took the same amount of time. Silly guys a flat bud smokes as good as a round 1! I had to interject some humor in there....