Arnie- First of all, thanks for your comments. Such comments coming from someone like you and several others here gives me a warm feeling. The blade root doublers will be an interesting project. Not only is it so important to have them formed to mirror the airfoil shape, the surface prep and clamping techniques have to right for a proper bond. These of course spread the load as evenly as possible at the root. I have seen examples of this that are flawless, and I have seen one that was uneven in curvature. I know from experience with laminating wood. that a low angle light will reveal and amplify errors. With shiny aluminum...it will be very hard NOT to see any uneven curves, or slight indentations where a gorilla was subbed out to run the clamps! I am green at bonding curved aluminum....but am following my instincts and asking ones that were successful. I do have a good critical eye, and will be more anal about this next step than anything so far. I will post many pictures of this process. Most of the guys are having these doublers water jet cutout for them, but I want the experience of doing that. I most definately will cut each these all in a stack at once so they will all be the same shape, same edge finish, and same weight. None of this cut them one at a time. Stay tuned.... I will be back! Stan