MinnFlyer's advise is great as always!! And as he said a BIG no NO on C A'ing
half of the hinge!! Install both sides and wick the C A while flexing the surface...
I've used the crayon method and I'm also unsure of the need for it.. Seems to
me the C A wicks so I'm unsure how much would be "un-C A'ed"???
The other thing I wanted to say was a few also drill a small centered hole in the
middle of the hinge slot to "assist" the wicking action in spreading through out,
I have never done this, as my C A hinges has never pulled out.. But I have had
a few break.. The gap was good... But I may have used too much C A.. But they
were on high mileage 3D planes also, So I'm not sure what or why?