Shouldn't be an issue then lol.
I use 6" so its a little easier idk if dryer sheets wold work. I'd try a one or 2 gallon smart pot. Cut the section nearest the light leak in half and insert a coupler tape it in place then insert that end into the smartpot tape the top of te pot to the ducting so ur coupler sits flush against the bottom of the smart pot then work the free half of ducting over the smart pot about level with the smartpot and tape it in place and ur done. I'm sure that doesn't read as easy as it is. Same concept as what I used in the past just different material. I'd go with the Aurora bran fabric pots the really thin cheap feeling ones. They'd have minimal effect on airflow but would still block the light. Lmk if u need a bit of a tut. I can take a few quick pics once I get to the grow in a few. Ur loop may be the best option considering the breathing room you've got with 2x8" lol.
I wish I could. It was a very secretive three partner deal. They financed and handled everything past it being cut down. Unfortunately one let a coke habit get the best of him the other got so paranoid he fled the country and I honestly don't know that I can physically handle the constant labor and stress anymore. It was legal depending on who u talk to but it didn't feel right and I've spent my time and money since providing for cancer patients out of pocket. Feels great but I miss the site of 10kw in all its glory.
With the secretive nature I only have 2 pics. 1 is an agent orange that yielded well and the other is the ao in bloom just before cut. The only other one I have has my face in it. Happy to post the other two but they're Hardly noteworthy IMO. Ill have to get some new pics of the tuff shed we did if I can. That was a thing of beauty.
I get what your saying. Its not a bad idea. Pretty much buy a 8in short straight pipe cover one side with the fabric "obviously taping it in place some how" and then reconnecting it to my ducting? Id like to see it those pictures if you want to share.