I do the same_ defoliate fairly heavily about a week before the flip to 12/12, then about three weeks after that.I haven't yet had the "balls" to defoliate as much as Green 75 but he gets some awesome results so I'm gonna try and take even more next time. For the rest of the grow I just take fan leaves that are shading buds. Works well. Usually I use about 1/2 to 3/4 strength nutrients, but after defoliation I used full strength nutes to help development keep pace since the photosynthetic process slows down with fewer leaves. They will come back pretty quickly after the veg and in the flowering defoliation it opens up more bud sites so they get more light. By that time most of the other leaf growth is slowing down, so the small leaves around the buds become more important and bud growth is enhanced. At the end_about 5 days before harvest I take all the larger leaves off the colas as well. to really open them up. I haven't been able to determine if defoliation increases the nodal length or not.