What kind of bit and settings are people using to add a juice trough to a cutting board. (Edge graIn hardwoods)
I’d imagine a roundnose aka corebox bit would be what you are looking for. I use a 1/2" diameter one to cut contours on my parts. The depth of cut and bit sharpness, all factor in with the density of the wood you are cutting, to determine the feed rate. A quality bit will last longer and is a better investment than some cheap bit too. Whiteside, Freud, Amana, and CMT would be my top choices with Whiteside number 1.
These come in different sizes and here is one as an example.