To tell you the truth, I am not happy with FF and I only have grow big, big bloom and open sesame, I don;t even have tiger bloom. I have a friend who has the other 2 solubles and since you use so little he was going to give me some. That is where I got the OS. I am very seriously thinking I will go organic next grow not sure which brand yet but I think there is less chance of problems and I am a person growing my own medicine so quality and taste are everything, I don;t do this for quantity or for anyone else. Can you tell me if there is anything that you found is really beneficial other than proper maintenance. Is bud hardener something you recommend.