With bridges it shouldn't have a ring issue. I think this is really swell man.
...That captive ring setup he's working in blows my mind. Especially the Piston itself. It's such a novel design but I don't see any reason one couldn't use that Piston design with standard rings...
Certainly would have helped me out when I was starting out. I have a Piston ring graveyard around here from 20 years ago when I diddnt know how to install them correctly.