I think you may have a bit too much articulation there...
Are longer wheelbases better for the Stairs? I'm worried about my shortbed making it through some parts.
People always give me crap for trimming my rear fenders so high (I don't nessessary like the way it looks either) but as you can see in the first couple pics, I've got enough rear flex to fill the wheelwell.
The longer the wheelbase, the easier it is to climb "that set" of ledges. My buddy Cory walked right up them with 112" wheelbase and I couldn't make it at 109". Wheelbase is a funny thing. Longer is better for those steep climbs but makes it hard to get around the really tight parts of the trails. That's why I shot for 109", everyone recommends 107-110" for CO wheeling.