Thanks for all the sizing advice and counsel. I sized three
rings using most all of the suggestions. One turned out
terrific. Only a good eye could find the joints. The other two
were not great primarily do to my being unable to find a wire
(half round )that would exactly match the ring shank. The wire
was either too narrow or not deep enough. I got them finished
but could only grade myself as D+ or C-. Is this a common
problem? I asssume there are no standard shank shapes.
I found with my fumbling fingers that I was better off to solder
one end of a two inch wire to the shank, cut it off and then
solder the other end. A pair of tweezers on the first soldered
joint seemed to be an adequate heat sink to prevent the first
joint from coming loose as the second joint is soldered.