I can guarantee you that ANY professional grow op is not using bagged soil because of the cost. They need quantity, wholesale, soil that they ammend themselves to keep their costs down. How did we go from a discussion of home growers choosing between FF or MG to a discussion about commercial growers and custom soils? Oh, because you continue to derail this thread and keep it off topic.
I attempted to man up several posts of yours ago by ending this back and forth conversation that is going absolutely nowhere, yet you continue to make the same inept points over and over and over. You keep comparing apples to oranges. The purpose of this thread is stated in the subject line. I really think you'd be better served to start your own thread on high dollar custom soil grows.... Those of us sub'ed to this thread could care less....