I'd feed another two weeks
Your pistils all look white and Trichomes look mostly clear. It's a tough call as to when to stop feeding.... check trichs carefully and when majority of them are turning milky white, flush and quit feeding and let the plant use the energy from the leaves to finish.
Happy Harvesting!! Your buds look nice and have a lot of filling in to do. You'll be amazed at difference between now and 3-4 weeks from now. Most swelling and filling in will occur in last 2 weeks.