Here an update of my handmade cumbus sbd with movable wood hoops design. This kind of hoops let the sound totaly free so bit
different that the other cumbus sbd model. Also I drilled the body to listen easily on the side.
I use here arabic set strings tuned CFAdgc. Neck is also in traditionnal oud dimensions (head nut 41mm - Bridge strings distance 83mm) ... Like an oud
but with many advantages
Details here https://sbd-projets.com/en/cumbus-sbd/