ive grown before but only cfl
You've grown before with cfl but you require a pound a month???
Holy shit I must be a light weight going through an ounce a month.
A perpetual setup in reality cannot exist with this kind of yield without veg/clone areas.
A pound a month will require at least 3x600w flowering areas.
Each light with around 3 weeks apart on the stage of the plants growth.
For example.
Light 1 - week 1-3 of 12/12
Light 2 - week 4-6 of 12/12
Light 3 - week 7-9 of 12/12
You'll need a mother to supply you with clones for each new round under each light. Clones take an average of 2 weeks to root using either 24/0 or 18/6.
Easiest way to achieve a pound per light is using 4-6 plants per light given around 4-6 weeks of veg and then flowered.
This gives you the least number of plants to look after cutting down the work and time spent in the grow area.
Then comes trimming.
I can trim a pound on my own in about 1-2 hours per plant. So about 8 hours total.
Hope this answers some of your questions.
J