For outdoors, that seems like overkill, IMO.
I find mixing 3tbl/gal of Big Bloom with 2.5tbl/gal of Tiger bloom to be more than enough to sustain large grows outdoors. I fill gallon jugs, put the BB in first, mix, and then add the TB and mix that. That combination maintains both the roots and hardening of stalk/branches while hitting the flowering with those nutes. I stick with that mix throughout most of flowering, and lose the BB about 3 weeks out from target harvest.