Don't give any Nitrogen now! It's too late in flower. Jsut keep giving a bloom fert, and check that your soil pH is correct.
Re-potting was the best thing you could have done actually. You have no idea how much worse those plants would look if you hadn't; old soil that has peat in it DOES eventually cause pH problems, and putting your plant in fresh soil gives them a new lease on life. The bud development is very good and the plants look only a TINY bit more yellow than you would want... don't stress it... you want some yellowing near harvest.