I use the two-pin method too, to keep the hinges centered and straight. I leave the pins in when I CA the hinges to leave a very tiny gap so you get good hinge flex. When I've not done this (left a tiny gap with the pins), I've had some very tight hinges. I also flex the hinges afterwards to help loosen them up, and give a good tug to be sure they are secure. To get the pins out, you give them a twist to break the CA bond, and then they pull out easily.

One set of instructions I had said to hit each side of the hinge with 4 drops of thin CA, so that's what I usually do (maybe it's overkill). I've found that you can tell when you adding too much when you see the CA just start to drip instead of wick into the hinge & wood. Usually the second side seems to need less CA since a lot has already soaked through from the first side.