The felloes weren't steam bent to a tight enough radius so a couple of their ends thin-out out at the butt jount(s) and in order to not thin them too much there is a hump in the OD/tire-shape of one of the wheels.
The hubs appear to have been drilled to accept the nave box after not only the spoke fit-up but also the tire shrinking. The latter step in the build process appears to have cocked the hub slightly so after the "drilling and pressing" of the nave box, the box is concentric in the hub on one side and very noticeably excentric on the other. The OD/tires run true when the wheels are rotated but the hub wobbles.
My Dad used to say for some stuff you buy, the price includes some $ for the product and some $ for tuition ($ you paid for the learning experience).
If these 15" wheels were the first I had purchased from Jay Jones, et al, I would never have purchased their pair of 30" wheels nor their 42" pair. In all fairness to them I do not think their processes for smaller wheels are as well defined or controlled... hence the variations.
From four feet away they look okay if you don't roll your piece too fast so the hub wobble is apparent. Again the bore of the nave box is concentric with the tire/wheel OD (except for the hump mentioned at the felloe butt) so the OD isn't going up/down back/forth.
I'll post a few close in pics of the anomalies later...
GOW