RE: Dragon wing failure.
I think anyone who has a skymater kit is better off opening a hole in their wing and gluing a hardwood block to the ric and skin, as mentioned above. after that - some hysol and a bolt through the tab to the block would do the trick.
Its not ideal having to open an ARF's wing, but it sure beats a crash which is almost inevidable with this kind of glue joint on these tabs.