I have the Bengal Bobbin Winder....bought it on Ebay a few years back and absolutely love it. It winds all types of bobbins. It is more of a professional winder. When I purchased mine is was fairly reasonable in price but now they are very expensive. I was one of those people that could never wind a good bobbin on my machine so I decided the frustration just wasn't worth it for me on the machine.
Now I wind perfect bobbins all the time and get so much more thread on the bobbin. It truly is a fabulous winder and worth it's weight in gold to me.
I don't think he sells thems on Ebay anymore but you could goggle it and find where he does sell them if interested.