Transfering pots while using coco coir pro plus?

name say's it all really coco is made out of million's of tiny particles i don't think it will hold even when wet, they are currently in plastic plant pots and are a few days from being rootbound.

Once there fully rooted as long as you wet it down a little it should hold no problem.

Okay would letting them go rootbound not cause any problems? what if it takes me a couple of extra day's to get bigger plant pots?

No, it'll help them. I use clear solo cups for my clones and seedlings to see the progress that might help in the future for ya.