I will have to do something someday about those bolts. Right now I plan to assemble it and leave it assembled since I have a trailer to transport it. Yes those bolts are the worst thing about the model. I have also pushed in one of the blind nuts and had to drill a 3/4 inch hole in the root rib to get at it and glue it back in. What a pain! I am happy with the wieghts and balance. It seems to be coming in just right. I will wiegh it as soon as I get my spinner, and put the choke servo in next week. The cowling really hides my little SPE 26cc, and I plane to put in some baffles to try and keep it cool. Sure hope spring comes soon, woke up to more snow!