Started the stabilizer Had to remake the brackets that attach the ribs to the front spar 6 times before I figured out the opposite end of the stabilizer was moving. Clamped a piece of plywood to hold it still but after flipping the stabilizer, I realized I have to make all the brackets over again. Nothing is held in place it just floats on the table and when you start drilling on one end everything moves. The front spar was not perpindicular to the table so the prepunched holes in the skin do not line up with the spar when I flip it over. New brackets from rib to spar will fix it.