The Retro Revival pieces I have tried (the Double Ring-inspired pieces) all had a higher baffle than the originals I have seen. Listening to the sound clips of Bob Sheppard playing and looking at the pictures, my guess is that the Crescent also has a nice-sized baffle. The original Tone Masters had very little baffle and were made in small facings (primarily - not sure if there were larger facings ever made for them). The Retro Revival pieces are modern interpretations of the classic pieces, not exact copies as I understand. I played a Four Star link (which was a series of pieces that were part of the Tone Master family) as my primary piece a while back. As a small opening piece with a hard reed, it lent itself well to the Coltrane thing. I made the mistake of having it opened up, after which the piece played very tubby, and I ended up getting rid of it.