This^^ would definitely be a major factor in drinking your liquid... Having a good quality BF atty would solve most of that though...
I should also add to my earlier comment, though I have never had a problem with "drinking" my juice, I do get the occasional condensation in certain drip tips that gives the effect of "drinking"... I try to only use wide bore tips that don't have any kind of step in them at all. I think most of my condensation is due to vaping in the .2-.4Ω range in all my atty's... At times the vapor is a little on the hot side...