I just prefer to have bolts from the inside of the fuse, rather than bolting from thr outside into a tube. This way, I can tighten the wings inward, that reduces the space inbetween the wings ad the fuse, I think that eliminates vibration. I have seen other H9 330L's with this mod, and I like it much better (as do the owners)...

I did a Google search and could not find anything about the wing bolt mods from Dick Hanson... Does anyone have a url? Thanks