Wow, so you can adjust action with just a screw at the back? I wish it were that easy on nylon-string guitars instead of having to file and shape nuts and saddl

Wow, so you can adjust action with just a screw at the back? I wish it were that easy on nylon-string guitars instead of having to file and shape nuts and saddles. The last time I made a saddle from a bone blank I spent hours only to find I'd messed the curvature up.