First test: 5 mg (~ 15% of 30 mg) at 8:30 am.
It kicked in really hard, like a thick line of quality speed. It didn't feel like something that a doctor would prescribe. Got a lot done, then hard crash at 12:30, lying down and dozing off for 20 minutes. The mental effect was at least as good as it was with Modafinil: I tackled the most urgent todo without mental effort and little chores just "happened". But with a high like from recreational drugs.
Maybe what contributed was that I did a quick, but intense workout.
So it was perfect - a very safe dose, yet also the productivity boost I needed for the day. 10 mg might also have been fine, but taking the entire 30 mg (or even 20) would have been a mistake. Certainly no risk to not feel anything.
I wonder if I should take another 2.5 mg for the afternoon, or just use tea and coffee as usual.
This strange effect regarding intensity and duration was no surprise - I observed that with other medication and drugs before, the doctor understood it and took it into account, thus the individualised instructions.
It's actually the normies who can't even do laundry without a little neurotransmitter bottle from mommy frontal cortex. We fight demons every day.