Friedchef, just a warning . . . I'm a big Viking rings fan, but we've now had two sets of seals, on two different suits, which have failed because the rings were installed on seals that were just a bit smaller than the rings. The edges of the rings are sharp, and they slowly wear through the latex. The seals that failed today had about forty dives on them.
I'm going to try working with a dremel tool to sand the ring edges and see if I can make them less latex-unfriendly. But be aware that you may have shortened the life of your wrist seals significantly by using these.