For me the higher the PG the better the TH. I add Menthol, cinnamon or clove juices (already mixed) to every fill whatever the juice is to complement it for TH. PS all I use in 3.7 batts and my PT(attached to the wall not a computer for 5v).
I'm in the market for strong cinnamon and clove for throat hit substitutes.
jangofett got me in the mood to buy atomic cinnacide.
More cinnamon or clove suggestions?