When doing defoilation I teilled off all the fan l...

In my humble opinion, you should defoliate if the area being shaded by the fan leaf is larger then the leaf itself, I mean, the shaded area would bring more energy to the plant then the defoliated leaf. that being said, I also think you should take the leaf if it's shading a bud. and you can take the little popcorn buds from the lower part of the plant, so the buds upstairs / next to the light would get more energy too. the thing with leaves is they receive and store energy, if you take too much the plant would be weakened even with lots of nuts available in the media, so be careful. I would advice to defoliate just before you flip to 12/12 (just a little bit, be careful) and after the stretch, around week 3, or 4, depending on the strain and conditions you are growing. oh, and you can take some leaves out by the very end of flowering, they should be all weared out. Hope I could help. Tchau, do Brazil =)

I am not really using defoliation except when I have to but I would shock the plant once and for all ! I mean I prefer to shock her once and let her recover once than doing it frequently and increase my chance to have an hermie or anything else by this way. Now about how much you should defoliate I think it is not the right way to think about it , you need to defoliate to expose some budsites to more light so no need to follow a kind of "defoliation schedule" , the better is to observe which leaves are blocking light to some strategic other spots. Don't forget that a leaf that is not blocking light is a useful leaf for the plant.