Depends on the juice you're vaping. On the ohms regard, I too found that ohms are "subjective". Higher ohm = cooler vape. Lower, vise versa. IMO higher ohms works well on fruity flavours and creamy/custard tasted amazing. Buuut you also have to take the atomizer you're using into the equation. Subtank mini is a happy medium between clouds/flavour but not a winner in any regard. Try using an imported juice in there, the throat hit is equal to shooting a shotgun in your throat. Kayfun,Taifun = 1.0-1.2 ohms however, 

TL;DR Read more, learn more, practice more

Ayam no master. Just a dude who have too much free time and too much khantal laying around 
Dunno about helping tho   I just share what I know and hope my stupidity will pave a better road to others