In the aftermarket realm of Banshee parts I think Dan Hull, K&T, Dave Moore, and possibly a few others are having shift forks with bearings in the fingers ,ade somewhere.
An RZ350 fork has a similar feature and they are direct bolt-in parts on a Banshee. The only down side to the RZ350 forks is that the bearings in the fingers are less than stellar (more of a bushing than anything else). However, IMO, they are still better than OEM Banshee forks.
As for magic that I have done myself, that last shift fork design I conjured had very nice shielded roller bearing in the fingers and the bearing axle was supported on both sides of the bearing. This design was Banshee inspired, but would not bolt right in to Banshee cases. The design was for a Banshee-esque triple cylinder engine that was mostly one-off in it's design. Given a testing and manufacturing outlet, I would be willing to meld this design into a Banshee application and basically give it away, but I think it might be a product that is too far outside of a normal racers budget. :geek: