On my Starduster Too I am going to modify the gear to the 8" position and replace the gear truss with a heavier one for the O540. The one thing that bugs me about the design is that the original gear truss makes it all but impossible to use the front rudder pedals. I want to be able to do check outs, so need the front pit fully functional. My new Duster has aluminum ramps up and over the truss for your heels, looks like a good idea, problem is it raises your feet so your toes hit the gas tank. So I am thinking, why not flip the truss upside down to get a flat floor? I redrew it, changing the geometry as needed to keep the same bungee dimensions. The belly will have to be 2.4" lower in the bungee area than the original.