What's good all its been a while since I posted This is my personal scrog grow I'm switching to 12/12 in about a week. She turns purple mid/late flower
Dr.who doesnt know what he is talking about. Always flush the plant unless you WANT to inhale seabird guano and the likes. Curing is of no relevence, dr who.
prune off the big fan leaves if they're not getting any light. if they are getting light I recommend leaving them on as they are part of the production. to answer your 2nd question I think you are doing right by first clipping the top colas as this gives the bottom section time to mature