I'm not all that familiar with the B style, as I use the A's, but this is what I did when I messed up my wick. With the piercing spike removed, I took a piece of cotton from a cotton ball (about the size of my pinky nail), and put it down at the bottom of the atty right on the coil. I drip a 3 or four drops of liquid down on it. It's pretty absorbent, and if the piece is big enough for the circumference of the atty, it wont leak. I figure 3 drops or so is enough liquid for vaping like I smoked one cigarette. Then just drop a couple more down to make sure it's kept wet. Vaping doesn't get tight at all, and I taste the liquid. Never a burnt taste.
I know there's lots of people talking cotton down, but I don't believe I'm inhaling cotton fibers. As far as I can tell, it's just the liquid that's vaporizing.