Today I finished the final riveting of the rib tips and installed the counter balance weights. I have order the replacement flap skin and it should be here Tue. I was not able to find the 6 bolts that hold one of the counter balance weights in place so ended up putting 3 in each for the time being. I called a local bolt and screw dealer but they did not sell the specified grade. I decided to wait to order these until I have enough stuff to order to make it worth while. I will balance these once I get the screws installed.