MinnFlyer has the definitive write up in the How To section here on CA hinges.


[link=http://www.rcuniverse.com/magazine/article_display.cfm?article_id=55]How to Install CA Hinges[/link]

I don't flex them as they are "setting". I figure I'd rather have a solid attachment and I can always "pop" the covering lose afterwards. It usually doesn't stick, and with doped fabric I just wipe paste wax and buff it along the hinge line before slotting the hinges in.

The trick about the drill channel to make sure the CA penetrates the full depth is a good one, also.