The Big Bloom is not to get large yeilds but rather to get rid of the salt buildup and stuff like that. The Tiger Bloom is used to juice them up and they should be used together.
Im using fox farms ocean forest, fox farm grow big, and I just cut off the fox farm grow big as im I just went into flowering. For flowering im using Fox Farm Big Bloom and Tiger Bloom together, along with Fox Farms additives Open Seasme to get my flowering process going. Two in a half weeks into flowering im using Advanced Nutrients Big Bud, as the Tiger Bloom and Big Bloom is a base fertilizer and the Big Bud is a supplement.