I was wondering that, too. I'm still a little foggy on how to get a good-sized plant going in a 5 gal. bubble bucket without starting it there in a 5-6" net pot (and wasting space with a small plant in a big bucket until she grows into her house).

I guess if the small net pot has been nested in a small nursery pot, when you transfer to the larger DWC netpot the roots would be contained and you could just let them grow out through the larger netpot as well. (I was originally envisioning trying to "thread" live roots through the holes in a new, larger netpot...:wtf

I'm wondering about pre-cutting / scoring the small netpot so it's a "break-away" operation when you move into the big buckets. Seems like growing through 2 netpots might cause problems, if only from the constraints imposed by the smaller netpot. Or am I not following the procedure correctly?