Bobbin - Regular (red)

Excellent thread tension - A little fidgety

Great build quality, excellent tension control. Quite easy to adjust tension on the fly just by brushing the mid-section of your thumb across the roller. A little fidgety in the fact that you have to hold the ends of the roller bolts with one hand, while you unscrew the roller to the point where you can squeak the bobbin in (aka - Almost completely unthreaded).