Well, right, wrong, or otherwise, I decided to stitch it but not line it. I went ahead and put the buckle on, then punched out the holes and gave it a try. It held the holsters firm with no problems (after all it is 10 oz). After doing that I decided to stitch. I'm about half way done on one side.
I have to say I like the feel of an unlined belt; it's more flexible. After messing with it I realized the back was rough enough not to slide.
I bought these holsters, because I was very curious about a couple of advertized features, and I figured after checking them out I might be able to incorporate some design features into my own holsters.
He made them out of Wickett & Craig russet, with a Neatsfoot oiled finish. Since I have a side of W & C in russet, I cut a belt blank out, tested a piece with the Neatsfoot and some stitching, and it's a perfect match.
Having said all that, I very much appreciate all the experienced feedback. I've copied all of your comments for future reference.
Thanks one and all. JD
I've decided not to name the maker on this forum, though he does not frequent it. If anyone wants to know, send me a PM