To add some clarification, the doors are already built, and finished. They are slab doors so no frame and panel, just a flat mdf veneer with wood edge banding. I'm not anticipating mortising the back side as I don't want the pull to extend any further than necessary, so I'm just wanting to mortise the edge. I guess I'm not getting it allthumbs. I presume I'll need to secure the door on its edge, and then arrange some sort of jig on the top edge that I'm going to work on. I'm concerned about tear out, and making them consistent from one to the next. Is this something I would use a brass router bushing for? Also, any recommendations on type of bit to minimize tearout? Thanks.