Just got my ProTanks (for the eVic) and Mini ProTanks (for the eGos) a few hours ago and have been vaping 50/50 on both since. I love the draw on both--it's about right, for ME--YMMV. As I guessed, the difference is about like that of filter or no filter in one of my tobacco pipes, easier without. I'd describe it as "not hard" rather than "airy." No leaks so far.