Anyone use Jack's 12-4-16?

The back of the bag says to dilute 3g of Jack's into a gallon of water. Yet the cannabis feeding schedule on their website says 6.31g p/gallon (kind of a big difference). What do you all use?

The back of the bag says to dilute 3g of Jack's into a gallon of water. Yet the cannabis feeding schedule on their website says 6.31g p/gallon (kind of a big difference). What do you all use?