What no Akha? Of
course they are harder to find good ones while Tahkli and Russian style are all over the place.
I first read about the Akha here
http://spindling.com/AkhaSpindle.html And then I found one that was a touch heavy but once I got a really nice one yep I can sorta spin cotton on it... which means I am more successful then on my other spindles or wheels.
A great wheel with an accelerator head is great for cotton but alas mine is a direct drive and doesn't get the speed needed. Some day I will get a dual purpose head from Bobbin Boy as those look really neat...