I have not used that type of hinge since the advent of CA hinges, but basically, you gouge out a slot and make a little extra room for the hinge itself so the center pin doesn't leave a big gap.

Then, I like to add a dab of Vaseline to he hinge part and heat it so it melts into the pin area. This keeps any excess glue from seeping in there.

When it comes time to glue them in, glue them ALL in BOTH sides (Elevator and Stab, or Wing and Aileron, etc) and move the control surface to make sure they are all in line.