So once we get the new bends adjusted on the seat and chainstays we won't have the brake rotor rubbing against both of them. Also I'd like a little more clearance for higher knobs so instead of using a tube I think we'll just use a plate in a slight V shape to give a good amount of mud clearance for the rear tire.
All in all though i'm super stoked on the bikes lines, and its pretty light. I'll fire up a final weight when it all gets put together with all the welds. In the pic there will be a BB drop so the pic isn't aligned totally perfect to show what the angles will actually be - you'll need to imagine it or use the rotation tool in photoshop to see.
Anyway i'll have more updates as we go... I'm pretty stoked on this bike.