Thanks Headshake, a few more questions.

7. If removing the base of the pots exposes some roots that had grown down into the base, is it better to just leave the base on or let these roots get killed?

8. My Sativa plant is growing much taller than my two Indica's. It looks less developed (no real buds yet just a few hairs) and every time I raise the light for this plant it grows up into the bulb the next day. Can I still LST once the plant is into flowering? It's burning it's "crown" so I'm gonna need to do something and raising the lights much higher is not an option.