Read through the support thread and didn't really see it, but saw things similar.
After pricing out U & T posts, concrete mesh and rebar, I started looking for a less expensive option.
Is it possible / worth while to just string a cargo net with 4" or 6" openings between to posts and weave the plants through it as they grow?
Simple net tying is simple and quick if you can tie an overhand knot and larks head, and you are not looking for pretty and absolutely perfect.
1000' rolls of para cord are not that expensive compared to the materials for other more common types of supports.
Does this seem feasible, or has it been tried and shown to be a failure?