The flaperon section is connected to an arm on the carbon fiber bellcrank by a short push-pull tube. I couldn't show that in this video because the mold surface is in the way.OK, can I ask another context question that I cannot see in your vid. The motion of the lead filled rod is circumferential at the farthest pinned joint at the rib. This seems to be generally moving vertically up and down along the shear web. How is that balancing out the flap? I can't visualize how you are transferring the moment of one to the other to balance across the rotation axis.