I live in eastern USA and I am one of the only people in my towns that can make a stable weed e-juice.
Here is the recipe I use, hope it works out for you.
Stable purged BHO
E-Juice BASE
BASE = ( PG 60-70% , VG 30-40% ) + approx 10-15% TFA flavoring
Take the BHO, heat it to 160 deg
mix in...