If u can pop them out that easy then i would repot them. No stress really if they just slide out imo. I've transplanted autos from 1g to 3g pots with great success. Solo cups to 4g did not go well even though they werent very rootbound.
I've used the green, orange and purple. I found the herb and vegetable to be pretty light. I add about 20-30% perilite. I use fabric potts so too much perilite and the pots dry out too fast for my liking. Pro-mix has a decent amount of perilite in it already to. I like to add some ewc also...
Lookin great Spacef!!! To bad about the gsc. I've got a gcs and a black cream going and both are a pretty good size. The black cream is amazing to look at with her red and purple coloring. The gsc is slower to flower but lookin like a good yeilder.