Using the "Y" pvc pipe you will have better luck and more production for the same area.
Plus you will have maximized your light output.
There a picuture some place and it has 8 vertical tube in puts and as may place to put net pots in to. I have seen them with 12 vertical spaces with a 8 tubes for a total of 96 plants.
The system you have in different but a extreem waste of space , and time.
Have fun thinking , enjoy growing narcartics.
To stop thinking is a waste of time.