Wow! Chalk lines and all that measuring and stuff. I'm impressed!
Did you ever hear what the definition of "precision" was in Civil Service? That is where you measure it with a micrometer, mark it with chalk and cut it with an AXE.
My definition of a jobber is a guy that does this every day....works fast and has no real connection to the project other than his particular "job". I understood that you have jobbers and you have craftsmen. A craftsman can be a jobber but prefers to not be. A jobber, though highly skilled and experienced, is rarely a craftsman and that doesn't mean his work is shabby in any way. Guys that do those mega buck projects are usually under a microscope and are really anal about everything. It is OK with me if this definition morphs as you travel around the country and speaking the same language is sometimes difficult. If you have been doing this for thirty years I would seek out you advice for that reason alone. Then you have people giving testimonials to your knowledge and creativity..sooooo! Who you are doesn't seem to be up for grabs. A rose by any other name, and all that.
Chill my brother