I switched from 2.5 ohms down to 1.5 ohm (kanger atomizers) and noticed an immediate and considerable improvement in my vape. I was using at the time a VAMO v5 (now use an iPV2 50 watt). Seems the sweet spot for me is between 1.2 and 1.8 ohms (at least that is what i build now).
I have not tried the new .8 kanger
coils. Stay tuned. (Check your mod specs to determine IF you can even fire that low.)
The newer version of the kanger atomizer coil refills seems to be a better design IMO. Whether you use old design (with cotton sticking out) or new ones (with little holes) i recommend you rinse them and blow out old liquid when changing
juice. Be sure to fully air dry.
Bottom line... less resistance means changing your wattage (or voltage). You may want to refer to a Safe
vaping Power Chart (v3) to find your sweet spot.
Save this one to your computer or phone for easy access.
Click here for more info:
Tutorial: Variable Voltage and Vaping Power Chart | Mist Hub
(NOTE: there is a sub ohm chart on the web as well. Tread carefully, please.)
Please understand that battery strength/drain, PG/VG ratio, and nicotine level all WILL change your subjective vape experience.
If you want thicker clouds go more VG. If you are looking for better flavor do a 50/50.
Higher wattage means you will likely need less nicotine % as well.