NPK is nothing complex . . i know a guy who mixes his own salts , macros and micros . .does better then anyone else i know(yield/quality wise comparatively to other growers with same strains/cuts)
any person who claims unequivocal superiority of one product over all others is either a sales rep, a argumentative jerk, or a afool
there are hundreds of ways to grow depending on environments and many nutrient lines have there strengths and negatives . . . .proof is . .not everyone uses dyna grow even after 20 years of servicing the horticulture industry
UB and HB both claim kelp extracts/powders are useless . . even though they have been used by farmers since pretty much for ever, so that tells you a lot about them . . . lets guess does dyna grow have a kelp product . . .i dont know but i would assume not
http://www.dyna-gro.com/
i love there neem and i hear their silcon additive is bomb too
and it i know guys who use it that do very well, fire buds . . .doesnt make it top dog by any means
i know two local companies making artisan batches of nutrients that have much better base's . .Lindas gardening magic and blue moon . .i don't even use em . .why i like what i use