Thanks for the tips, guys. Ya, i just recently changed over all of my lg bolts to nylon. I bought an assortment of different size blind nuts and nylon bolts because I plan to always use this method. I "tested" some the other day on my 4star. They did the job by breaking off on a bouncy landing and saved alot of hassle. I will check out the site you have provided link to. That should be a great start for when I get into the scratch building stuff. Thanks everyone for the tips.