gaRCfield,

Somewhere I watched a video of a guy using hinge point from Robart and he glued them in with polyurethane glue. With the swelling action of this glue you will have a hinge that will never fail. The trick to this method is how to handle the glue because of the swelling action. As normal you have to oil the hinge elbow and do all at once for the surface you are working on. One thing this video showed is that the guy had to baby sit the whole thing because the glue foaming action would push the control surface out. I was not going to do that so I took a little Vaseline and put a thin film on the control surface and wing hinge line, I even let the vaseline go on top a little. This is to keep the glue foam from sticking to your finish on your wing. Now the fun part, take a small q-tip and wet each hinge hole with water, then put a small amount of glue in the hole and a small amount of glue on the hinge tips. Make sure you use a small amount of glue, it goes a long way. Put the hinges in, then the control surface on, move the control surface up and down, this will align the hinges in the hinge line. Now get masking tape and tape the control surface to the wing so the glue can not push it out. Come back about 30 to 45 minutes and you should see the foam blob at the hinge point. Don't freak out, take a small exacto chisel blade and carefully pull the foam out. If the glue is still wet and can smear wait a little longer. It should be soft but not leave a residue and the foam blob should just break out clean.

I put these hinges on a patten plane once and I know they are heavier that Radio South CA hinges, but I promise you this, your glue job will not fail. I also had no gap in my hinge line and the control surface moved with such ease. If you took the servo loose the surface would fall full travel down. Just remember to use a small amount of glue. Ask me how I know, I got that crap on everything in my shop.
This sounds like a long drawn out method, but once you do it the first time it's really easy and fast. You may come up with a better method than mine. Good luck I hope I was some help.

Larry