Rotating Clutch Side Grip

[mideastrider]

I am trying to prevent my son's problem with left hand blistering. It really only happen's at sand races. I tried several different types of grips with really no difference. Someone said that there was a left side grip setup you could get that would rotate somewhat preventing the palm rubbing you get. Has anyone heard of this and know where to get it?

 

[XRpredator]

Boyesen makes one:

http://www.boyesen.com/cwo.php?id=&id2=&id3=&page_id=15#so

 

[mideastrider]

I think thats what I am looking for. THANKS