Jim,
I wasn't suggesting that some rifles didn't have the butt pieces inlet like the photo. I used to do them like that based on the guidance in William Buchele's (sp?) Recreating the American Longrifle. It is just that all the original long guns I have ever taken apart were done using the simpler method. The simpler method was also the one that John Bivins recommended and used in his Rifle magazine articles. I gradually moved away from the more complicated method to the simpler one as the result didn't seem to be any different, even 200 years out. Of course, I could be wrong about that. I am sure you have seen more original, particularly early original, rifles than me. I did not in anyway intend to suggest there was anything inferior about the inlet job in question; in fact, just the opposite. I was just pointing out that in the future, there might be a simpler way that works just as well.
Best,
Mark