Yeah man i have seen major improvement. But i was using fox farms wonderful trio of nutes that were supposed to be the best. BULL SHIT. These guys just want you to fuck up your plants so you keep going back for more shit while they blame it on your PH. All that bud candy shit is crap. To much p and k for foliage. The first changed i notice right from the start was the color of my leaves. Nice and green. Dyna gro as all the essential nutes that you need. I have not changed since. I also have some jacks classic and bloom which is nice as well. The classic is a 20-20-20 as can use this the whole time with good results. Just keep em healthy and green. Remember leaves produce bud. Dont worry about the bud, worry about your leaves. The bud will come. When you have time, read through this thread you will learn a lot.
https://www.rollitup.org/nutrients/570037-so-you-noobs-hooked-cannabis.html Hope it helps.
Jacks Classic Bloom Booster. NPK 10-30-20. I use it for every stage of blooming. I start out the first 3-4 weeks of bloom 1/2 tsp/gal. This brings the NPK to 1.6-5-3.2 . After the buds are stacking, I use 1/4 tsp. per galon for NPK of .83-2.5-3.6
You just do the math on whatever you decide to use and adjust the NPK to suit your needs.
If you feed less often, feed stronger, just fresh water in between.
I feed often though, everytime I water, so I would kill my plants if I followed the manufacture's suggestion.