Had a fun example recently, had a friend round who keeps on dabbling in vaping and keeps on going back to smoking.
He tried using my Vaporesso Luxe with a DTL (Direct to Lung, it's where you pretty much inhale) Skrr tank and pretty much coughed their guts up every time they had a vape from it even though they loved the look of it.
So, just for the sake of it I tried them with a SXK Prime MTL (Mouth To Lung, similar to smoking style as you pull the vapour into your mouth and then inhale) rebuildable atomiser. I almost had to pry it out of their hands as they didn't cough or choke, even though initially they didn't like the idea of it at first until they vaped it.
It's just that us vapers can tolerate and enjoy one style more than the other.
@kiwigirl63, do you have any local vape shop with a juice tasting bar near you? As my idea is that you could try different VG/PG concentrations and different tanks or atomisers (DTL and MTL) so you can narrow down what works for you better. But one thing that you do need to know is that high VG to full VG liquids don't wick well to not at all with drop in coils, rebuildables can though.