I started using bobbins for my floss about a year ago. I use a flared bobbin. I definately like it. Less waste and the floss goes on smooth. Very nice when I am using the rotery feature on my vise. When the 4 strand floss attempts to seperate I give it a couple of twists and it is good to go. I do keep the space between the tip of the bobbin and the hook at a minimun so seperation of the floss is minimal if at all.