Sorry Blazed, misunderstood. Apologies.
SLB, that sounds very similar. I've since seen an article (lost the link, sorry) from someone who has done this on a larger scale (think he was using MH) but went one better. His Sphere was split into 2 halves so that it could be opened up for maintenance / or to increase distance from plants. I was thinking if I ever go down that route, I would take it further and split it into 4's.
I was gutted. A similar thing happened to me at Uni where I came out with the idea of a Hydroponic Golf green. Unfortunately, when I started researching it, I found out it had already been done!
This morning's modification involved wrapping some old socks around the edge of the Res to keep the light out of it!
It's Kinda fun getting back to basics. My last proper grow was a complete headache. Stealth loft grow through winter in a commercial building I ran. Had to build false walls, insulate the roof (lots of people grow around here and the police helicopters search for it), carry gallons of water up a ladder through a tiny hidden entrance and all that C*@p!. Still, at least I wasn't paying the electric bill with my own money!