Hey Midas! Glad to have ya here
Yeah most of my V-Scrogs have averaged over 1lb per harvest
pretty sweet for such a small space
The way I would recommend doing it would be to have 2 tents, each with a screen. This way one tent could be started and by the time you are putting the 1st tent into flowering, you can start clones in your 2nd tent and get them vegging to fill the screen. This would be probably the best option to do perpetual scrogs and I most likely will be doing the same in the near future
(once I make seeds and narrow down the amount of plants I have)
With the method above, each tent would get about 2 harvests a year...well like 2 -3 harvests or so depending on what strains you are running, how big your screen is and all. So with 2 tents going this way, that is about 1 harvest every 3 months.
If your looking to get that much every 4 weeks, you would probably need a 3rd tent, or just to do larger tents, like a 4x8' tent and grow large plants, starting each plant about a month apart. (not scrogged)
Now I do want to note, my tents are NOT 2x4x7 tents, the size is listed as a 2x4, but in actuallity, they measure 28"x55"x78" which is closer to 2.5'x5'x7'. I just wanted to make note of that because my tents are larger than most 2x4 tents which measure as advertised.