Very true Loc NAR, you can trim the lower roots with only a minor delay in the over all growth. Your if I remember correctly was a sog or at least a smaller plant; I could be wrong.

And the yield was the same as the others, but was the quality also the same? It should have been just a touch better due to the fact that trimming those roots allowed more air and more nutrient uptake.

Well that's the idea anyway.