Mobyal,

I had those hinges installed on a 40 size GP stik by the book.
The funny thing is several of them ended up breaking at the hinge line.
Before it was over with I ended replacing them all, I for one will never use GP hinges again.

So far my bottom wings do not fit very good on mine.

I am installing a G-38 on mine, with Futaba 3010's through out.