Hi Davr, I used them for a couple of years and decided to go back to Future Harvest. I used a broad line of AN, including bud ignitor, bud candy, B-52, etc.--in other words, not just MGB. So I can't tell you which nute did what.
I always used way less than the recommended amts., and I almost always got a little nitro toxicity in flower. I talked to their reps on the phone a couple of times, but I didn't really get my question answered, which is why do ratios of MGB stay the same throughout the grow? It doesn't make sense. The bud was always very much liked by everyone.
On my current grow using the FH line, I'm definitely seeing better bud growth and development (I grow hydro; week 6 of flower).