Yeah you're within the law on the fabric surely, keen to hear the ruling on the extra air holes in the sides..Yeah I believe reading through all the rules that those would be allowed since everything is inside the cup. The only one it breaks which is why I'd like a ruling (lol, feeling like I'm in court) is the extra air pruning holes in the sides of the cups...
I'll sketch up a design of a 16oz party cup with 1/4" hole in the bottom that can be blocked. A 10oz cup will be used as a netpot of sorts that has walls made of fly screen holding coco inside the 10oz cup. The 16oz cup is filled with eg 1" of perlite on the bottom, then the 10oz cup sits on the bed of perlite and the walls are then filled with perlite.
I'm thinking you could use it as a sip/Hempy of sorts, filling the outside with water and letting it soak the coco and maybe then fill the perlite walls with nutes (to saturation almost?) Then you could let it dry for a while and refill or take the drain out and flush the salts/coco/perlite out? Thoughts?