Instead of putting the pin in the centre of the hinge, you can also use a red colored pencil and draw a line on it, this way you can visualize where the hinge is at. I have always been wary of putting a hole in a CA hinge.


The problem with a colored line is that if the hinge is tight in one of the slots, its difficult to centre it, a pin locks it in place. I usually use a thin pin so I dont create a 'hole' in the hinge.