I'm new to routers. I just got a Bosch 1617EVSPK for x-mas. I've been watching some old guys on You Tube use templates to make name signs. I have to guess that there are templates for pickup cavities and control cavities, or at least some method of making one's own. Or are most luthiers so hard core that they do it freehand? I'm guessing a very small bit must be used to achieve the tight radus shapes of some pickup cavities, like the parts of the hole that go around the pickup screw bulges on J pickups for instance. I'm a total router gnewb, but I am pretty darned steady handed and a better than average TIG welder and solder jockey, hold an 8" group at 500 meters, and a decent photographer. While those aren't woodworking skills they are eye-hand skills. Even so I don't think I'd be willing to attempt a freehand cut of a pickup cavity, especially one that is precisely fitted around the pickup like J-bass pickup cavities are. Any help on any of this stuff? I'm super open to learning new things and I've been told I'm pretty teachable. Thank you.