I'd be interested to hear the builders opinions on elevated and asymmetrical chain stays. I'm more of a curious amateur than anything so here is the only place I can get some more informed opinions.
I remember the hardtail elevated chain stay fad in the 90's, the reasoning given was that they were less prone to chain-suck and were more stiff. Of course they were a good marketing tool too, very recognisable in a shop full of normal designs.
I sort of took a back seat to the sport after that and now I'm seeing these full suspension bikes with asymmetrical chain stays. It seems the non drive side is usually shorter than the other side and elevated slightly, but both sides pivot around the same point, or so it seems on most designs.
Is it just more marketing on the new bikes, or is there a real benefit to an elevated non drive side chainstay on a full-susser?