Ramcharger, you are right as far as dangerous goes. I have a scar on my right hand from 1980 when dremel still made them. I was beveling a hinge slot out for dubro pinned hinges on a sig twister u/c and the saw end was down and the cord was up. Well, you can imagine what happend when I inspected my work and the hand relaxed........Ziiiiipppppp! From the heal of the hand up the little finger and then it decided to whip back down for about a half an inch. Fourteen stitches!! I shutter every time I get one out and I make sure that I remove it immediately after I am finished with it. Whew! It still makes my hair stand up just thinking about it.
As far as slotting with it, unless you are using nylon or some other kind of thick hinging material, I always use a #11 blade and that is after it is covered. I never slot before covering. If you hog the slot out you will have to press it together to make good contact with the CA hinge. If you have never had any problems from this method, as I figure will be your rebuttle, it is just a matter of time. The wood should be tight against the hinge. That is if you use thin CA as I do otherwise you might use medium but you will have to hinge one side at a time and that is risky! Check you later bud. Bird.