pH Perfect is all about better chemistry (chelates) allowing better bioavailabilty, plant nutrient uptake, over a very wide range of pH. Adjusting pH is counter-productive; AN recommends against it; with adjustment just adding more salts/ppm, which at some point interferes with the pH Perfect chemistry. Particularly if you start with low salts/ppm, ideally RO or distilled, water and stick largely to AN's regimens, there is no need to check pH. I stopped checking pH years ago.
I've been using a simple TaNg-based (all AN pH Perfect bloom) regimen, using AN Connoisseur Bloom Coco (this is new, with generic/non-coco veg. and bloom long available). Seems to work better than using the Connoisseur Grow during veg. I see no deficiencies or excesses, and transition to bloom is seamless (while there was always some minor bump with some plants switching from veg. to bloom), with the plant having a chance to build-up some P and K reserves. I've seen absolutely no reason to go back to using Grow during vegetative phase.
