This is reminding me of the effects on Modanifil - not the actual effects - I mean that depending on my original mood, or how much I have eaten, or what’s going on in my mind - the modafinil effect could be completely different. Same pill - different result according to my original state.
I don’t think the effect is different depending on 3 mins or 5 mins or 15 mins - it’s just your original state before running it that’s different. So each time you run it, it will be a little different.