Hey Florida, I'm surprised you cut down you big Sativa. Mine is still flowering and getting real fat colas, pics soon. I'm still fighting the bud worms so I'm spraying every other day or so. Buds are getting too heavy on some branches and I had to tie a few up. Mine lloked like yours with the yellow leaves I just hit them with one hit of 20-20-20 followed by some molasas two days later. the next week back to 10-52-10 bloom. My plant have almost no big fan leaves now but the buds are still growing everyday.