im doing the same thing right now. I had originally 10 plants and I have pulled 3 a week for the last 2 weeks and now im doing the last 4 in a couple days. I started pulling at week 9/10 as that's when 50 percent of the trics were amber (i love couch lock stone) and now its end of week 11 and the buds on the last 4 plants are HUGE!
They easily have gained another 25% in size from the time left under lights.
i grow with 400 watts over head CFL, 2 4"4bulb T5 side panels and front CFL lighting in Clamp reflectors 250 watts for all surround lighting. I yielded average 15 grams per plant on the first 3 plants, averaged 19 grams from the second 3, and this round of 4 i expect about 3/4 oz per plant. I vegged 3 weeks from clones before flowering.