My cousin is a salesman and he gave me an E-cig product for free. It's a knight stick, and from what I've read the company does shady business, but oh well, my product works fine and I didn't pay a dime for it. Anyways, I want to try refilling my cartridges, but I cant find any posts on here about how to do that... Searching refill gives me way too many threads to search through... If someone could point me in the right direction it would be greatly appreciated 