@Cannapprentice I beleive the ph could come down a bit as your plants are lacking potassium and phosphorus
I would also look at incorporating a pk booster into your feeding regime. Some strains are fine and will thrive on whatever you feed them and then there are
some that require more of a boost during flowering. If you bring the ph down to 6.3/6.4 It'll be able to uptake those elements easier.