Hey Vapers! Marcia here again. If you haven't met me yet, or would like more information about my project, please check out my first poll here: This question is for the folks who really know their vaporizer models! We'd like to build a lifelike, 2-piece (mini +cartomizer) model. Keeping that in mind: Would you recommend 510, KN4081, KR808D-1, or E9? Love hearing your excellent feedback! Cheers, Marcia