I know what you mean. My bearing is 3/16 and rode half in the kerf. I didn't do a full 1/4 round. For these, I also could have cut the profile first, but wanted more surface to ride on the table. It was a consideration.
the cutoff piece warping
What you talkin about Willis 🤔
Figuring out how to do something you have never done is what makes a good challenge.