Mohair roller??

I've been searching around the web for other sources of information (automotive and/or other industries) on painting a smooth, glossy finish with rollers.

I've seen several mentions of Mohair Rollers instead of high density foam for achieving the smoothest and glossiest finish.

The latest reference I found was interesting -- from a Sign Painting forum. One responder to the thread says:
PS... I have found that 1/4" nap mohair rollers cause less bubbles than the foam rollers!

He even talks about the technique of re-rollering to pop bubbles.
http://www.letterhead.com/ubb-cgi/ultimatebb.cgi?ubb=get_topic;f=1;t=030384;p=0

I'm curious if anyone here has heard of or tried a Mohair roller. I've searched around a little bit and it seems there are both natural and synthetic ones these days. Most mentions of them specifically call out that they are intended for "glosses, enamels, and industrial finishes..." They also say these are least likely to shed.

-- Dan