It will and should work, they have protocols for 2 generators, your progress will / may just be slower. Any improvement is and improvement though.
I have 4 and would not be without them now. There was never a lightning bolt moment where I woke up and said I am cured. Bit slowly and surely the mind has become clearer and the symptoms ( too many to list) are slowly getting better.
Source:https://www.facebook.com/groups/spooky2/permalink/681910475304192/