Ok, I know I am the new kid on the block, but I don't get it. I finely found a cart, smilin menthol, that I thinks great! Have both in 18 and 11 strength. Bought the 18 strength juice- yuk. Figured I was doing something wrong, or to strong. Watched the videos, and ordered 11 smilin juice. Less yuk, but still not the same as the pre filled carts. much harsher and not the smooth taste of the cart- missing the smooth coffee after taste. Is it me, or do I have to start all over with trying 100 flavors of juice from scratch as they don't match the pre filled?