... gee it was supposed to be about humidity and not food...

I like low humidity thoughout. Copius resin production and narrow slender leaves. The narrow leaves allow for greater light penetration.

High humidity produces broad leaves and a dense canopy. Lower humidity has shown earlier resin production on my previous crops than with high humidity.

Low humidity = Less chance of mold - good for strains like sensi star that have very compact buds and develop mold if not carefully monitored.

I don't think humidity has affected the quantity of my overall yeild ever, besides losses from moldy colas which actually hurts when one has to throw prime cuts on the log burner. The Quality is affected though, but that is just my opinion and isn't a textbook suggestion.

Good luck matey!!