I've been told by many a hydro shop man (and its prolly just a sales ploy and that shits expensive) but they swear by their own crop and actually anyone who is within earshot likes to add that using the full line of ff product brings out the intended results and if you miss one then your really not going to see a huge difference...but i agree with Nickfur the tiger and the big bloom are going to give you a really good result but if you are looking for the boost and dont want to spend an ass ton go with the molases but make sure to keep an eye on the flushing your soil might start to turn into grandmas molasas soil cookies.