No stop bar, Daniel. I'm going for the string-through-body thing. I've got an idea which i'm hoping to use for that one too....top secret till I do it (or fail).
Bandsawed the body (nice cauls!), routed pickup holes and shaped to the template before final shaping on the spindle sander. Routed a 45° chamfer, purfling ledge and binding channel. Started purfling and binding! Decided against the flame maple binding as the corners are a PITA to head and bend around. This is mostly because of my patience or lack thereof. The chamfer depth gives me a nice "stop" point where I know not to chisel, sand, gouge, drill, recess or otherwise *go* lest I run out of camphor top and hit mahogany. The carving can wait.
<edit: i know that I accidentally set the depth of the drill press a little too deep when roughing the pickup cavities. trust me, i know!>