A great up transfer is to veg them in the aero garden then put them in big dwc hydro buckets or something similar.
Have you ever thought about that? Then each plant could have 5 gallons of its own reservoir instead of sharing a total of one gallon. It would mean less topping off for you, less ph swings, etc.. just easier all the way around for you as a grower. And the plants will have a greater potential.
I'm just trying to help and feel I can because I do exactly this and it works great.