hi bert,

good observation about the colour change, don't worry, my guess is that either the bottom leaves are paler because they are older and havent recieved much light lately or the plants metabolism just unbalanced due to the stress of the crush. Nothing to worry about.

I dont scrog because i can only work from the front of my tent. you really need access on at least 3 sides because you need to prune underneath and pull the branches through to fill the screen. scrog would help with your light problem though.

Subzero