While browsing through the auction site I saw a 500s with a very unusual looking offset handle. Having the knob closer to center should reduce wobble and it looks pretty strong. Does anyone know where to get them?
(http://i.ebayimg.com/images/g/e9wAAOSwZ1lWee6v/s-l500.jpg)
(http://i.ebayimg.com/images/g/12QAAOSwCQNWee60/s-l500.jpg)
(http://i.ebayimg.com/images/g/W20AAOSw1S9Wee6z/s-l500.jpg)
It's an aluminum arm sold on ebay.