Yeah I noticed the same thing. If you buy from certain vendors, depending on the flavor, you get a huge plume of vapor that hits ya pretty hard. I enjoy liquid from myvaporstore, cigtechs and nuvape for this purpose. Also if you occasionally use a higher nicotine liquid (like 24 or even 18 in some brands) you will get a buzz.
Unfortunately, some of the higher throat hit liquids fry your atomizer quickly. While I love the flavors of nuvape, they do tend to clog the atomizers up pretty bad.