I believe they do.............there was a tight mass of very fine roots amoung the larger roots.
The entire root ball was very solid ..................it wasnt root bound per say.......just a very tight network of both large and small roots.
I think I ran outta room down there long ago..........If I had bought the 15gal instead of the 7gal pot, my girl would have probably produced even better.
I think approx 6 oz's from a single plant is pretty damn good though.........but Im willing to bet that would have been doubled in a 15gal airpot
O yea this plant looks great, I would enter in next months POTM if i where you just to see, but going to be lots of outdoor giants I bet since time of year.
My current plan for next grow is 400W LED and 2 plants in 15 gallon airpots in 3'X3' tent with scrog. Need $$$ for set up though, just spent $550 on plane ticket for family thing that was un-expected .