I have made a few segmented bowls in the past. I never cared for a 3/4” thick ring. A friend of mine showed me a sled he made that will allow you to cut rings any thickness you want. I just took some 7/8” thick rings and cut them in half. Then I sanded them to 3/8” thick on my drum sander. It is a game changer. It also works great for resawing a solid board but you are limited to length.