Agreed. Since seeing how compacted the roots were in the red Solo cups (pics past) I'll up-pot to 5 gal. before flip.The "this soil has enough nutrition for x number of weeks/months"....
I'd plan on either potting up before flower, or figuring out a feeding regimen (dry or liquid),
How many days before flip should the transplant take place?
I'll post more pics as days go but we'll evaluate again around 3/28 for a 4/1 flip. I've still got the mesh net to deploy and think Gorilla taping the corners to the poles should work.I'd let them get a little bigger, maybe train them a bit and then let her rip. If height becomes an issue you can super crop.