Khan has discipline, motivation, passion, drive, all things manly.
Productivity I consider under another category, however, the fourth Stage does have limitless so intelligence gets enhanced and that would certainly help with productivity.
Each time I ran Total Breakdown it was immensely transformational.
On Stark did you not notice enhanced problem solving, outrageous productivity, better cognition?
I can easily do multitask and calculate, think of, solve multiple tasks at once. Things go fast on Stark.
But it does not have the drive you’d get from Khan.
I think they would combine very well.
In fact Stark with Khan would be such a prestigious combination.
If I were not to lean towards Chosen I’d probably run that stack.