Hello DWCpaqy, I do recommend to start the 600 hps from the moment that you notice the first signs from flowering. My DWC bucket got a drain and I can get the lid of without lifting the plant up, so if you can do the same you can just attach your LST ropes to the bucket. If not you can always place 4 cheap plastic 5kg dumbbells inside the tent and attache your LST ropes to these weights. Easiest material to use for LST in my opinion are soft wire and tie wraps. Enjoy your grow!