Thanks for the input. So I'll decide on which one I'd rather use... sounds like both would be great and I guess the Alpha40 has light wing loading anyway.

I received the new hinges today. They are not the same shape as I had thought... they do not taper in on the ends nearly as much, which means they will have even more surface area to bond with the wood.

Here's a pic of them side by side. The new Great Planes hinge is on the right...