I am borrowing an ashford traditional and I'm still getting used to all the lingo and stuff, so bare with me.
you can see here that there are two drive bands, since there are two grooves in the bobbin (or the bit that goes outside the bobbin)
but the wheel itself doesn't have two grooves, so I could easily get the jumbo flier for a SINGLE drive, no?
the price difference is huge: http://www.woolery.com/Pages/ashwheelsfr.html#ashfordaccess
ASH-T3011 - Jumbo Flyer / Single Drive... $77
ASH-T3012 - Jumbo Unit / DD... $132
So, i guess my question is: the only thing that MAKES this a double drive wheel is the fact that it has TWO drive bands... right?