For those of you who know me you may recall I was a dental Lab Tech for a while. One piece of equipment I kept was my dental hand piece. The photo shows the tool and an assortment of the Burrs I use on a regular basis. It's a tool that comes in very handy in modeling but nothing you can't do with just a drill and bits not to mention a Dremel Tool. It's the Burrs or Bits that do the work.
I glanced over Minns thread and didn't notice this one step I do for installing CA hinges. I may have missed it or he may be doing it with the pin through the center? As a said, I just skimmed the thread and didn't read it.
I like to cut my slots with a GP slot cutting tool, I have several other types of slot cutters but the GP cutter works very well with a lot less work. It gives me a Nice tight slot. Then I use a Burr of about 3/32 and drill a hole in the center. This is where I flow in the CA so it will completely glue the hinge to the wood all the way through the edge.
When done correctly the CA hinge works great. I will still use CA hinges if someone wants me to on there plane. I have never had one fail, they just aren't my first choice. I have seen them fail but it was because of simple little problems. Usually a loose slot and too much glue or glue used after the hinge was installed making them brittle.
Yes, this is old school and we have other choices but because something is an old idea doesn't mean it doesn't work. I still like my Zinoah gas engines with the Mag instead of the electronic ignition. More trouble free but I still have engines with electronic ignitions too and like them.
If done correctly there is nothing wrong at all with the CA hinges. If done incorrectly they can be a problem. It's just another of those choice things we are confronted with all the time.