Curious. I know alot of guys are breaking chassis in the 4.1 plastic (including sc10) It's always at the nose. The only thing on my b4 that isn't 4.1 is the chassis. I'm contemplating trying the 4.1 chassis. Has anyone heard anything about what AE is doing or are they just selling more chassis? I know they added the X mold to the nose but it hasn't stopped the breakage.