Hi Geoff
Yes you dry fit the control surface you are hinging with the hinges in place and when you are ready you use thin CA so that it will wick up into the hinge socket! I don't know about the Swallow but most times when building a plane one of the last things you do is glue in the control surfaces. Once they are on the plane it makes handling, building and covering much more difficult. Although I mostly use hinge points I have used cloth hinges with great success. Good luck with the rest of your project!
Floater