Manhattan 8k man. 
https://public-files.gumroad.com/o7ef4glj1rnmiq3ti2gfxmjy2c04
Look into Smart Relational Training. I can message more on this.
General Intelligence just boils down to the processing aspects= IQ
Example:
Manhattan 8k
>>>>>>>
Enpp6
=
White Matter
=
Processing Speed,etc.
=
IQ or “Intelligence”.
![Screen Shot 2023-03-31 at 5.08.57 PM|690x431]
So Manhattan 8k. 
Hands down, low diff.
No question about it.
It was made for your question. 