you use PK at day 24 .. this is not too early ??? canna say use it 3 weeks before harvest.
As I can only speak for my grow on (selfmixed) soil:
I ONLY used PK13/14 as flowering fertilizer. I did end the fertilisiation 4 Weeks befor to harvest, once i did 2 weeks prior harvesting and the result was a sparkling one: to much potassium in the product that made firy effects wenn burning.
I did not want to hijack this (one of my favorit) threat!
so all I wanted to add:
Lass wachsen freggle!