It seems that it happen randomly, like the weather. You can want to get krunk and it will just not work. Other time, for some mysterious reasons, you get hyper krunk from even less kava... Who knows the complexity of our mind and body?
But still, for me, the silent smooth permakrunk is what I'm chasing for. A life changer. A appreciate more the life like when I was 8 years old, even if I continue to care about my duties.
Peace!
Edit: work hard with trad prep. Knead a lot and make sur you load the maka with water in between, but knead and knead. (I usually use my two hands one after each other at fast pacing). 15min is my run.