I agree with @Azriel. The difference is more in how long it takes your mind to deeply process and integrate the information.
In June, I bought two customs each with twenty modules. I’d say I got benefits from the very beginning, but now, 2 months later, I’m starting to somehow feel it more clearly.
I’m definitely in the ‘wait longer for a larger return’ camp. Just got to make sure not to take that too far. Otherwise, could end up like a Ferrari in a traffic jam.