I have also noticed this... the only thing I can think of.. is you would follow the back of the bottle if you were using it as an additive to a different kind of food (although Im not sure why you would use only one part of a 3 part system?) So in other words.. you can use "grow" as a veg booster along side other nutes.. or "bloom" as a bloom booster etc... If you are using all 3 parts.. stick with the feeding chart for now.. It will keep your plants happy and healthy with a useable end result. Just FYI.. most cannabis strains can handle 2-3 times more food when using a B-1 vitamin supplement (B-52, Vitamax, etc) in OPTIMUM conditions (High Co2, controlled temp/humidity, good lighting etc.). The chart they give you is more of a guidline to get you started... In time you will get to know your strain and how much you can push it! My final week of feeding consists of 10G, 20M, and 30B per gallon.. It ramps up week over week to get to that point.. but it just goes to show how much more food these plants can take! Cheers!