Just got 5 lb of veg-bloom. Mixed up 2 rez's, Ro water, soft formula, ec of 1.19 and .9, and the ph is at 5.7-5.8 right out of the box. (half strength and 3/4 strength)
Easy to mix and no adjustments were necessary.
So far so good.
By the way I've been using dyna-grow.