I have always harvested indoor grows as they mature. No use taking those small budettes earlier then they mature nor taking the large cola after it's peak. Doing this, I have more then trippled the amount of good bud harvested from a single plant.
These days I am only helping a friend to get started growing. He says I will have free weed as long as he grows for my help...sounds better then growing myself as I get no risk and a lot of benifit, as long as he does not get gready anyway and cut me out after he learns the ropes.