I clean all my "professional guns" with a bleach, chlorine and amonia coctail because I love the smell... jokes. Do not try this!
If your profession requires surgically precise cold bore shots just clean for carbon, allow the barrel to fowel copper and, achieve copper equilibrium (around 50 to 90 rounds depending on barrel). Keep an obsessively detailed log of the barrels performance characteristics as your career/life truly depends on it. Upon noticing a decrease in consistency remove fowling COMPLETELY. Achieve equilibrium again and so on. There is no evidence that this process will make your barrel last longer or wear faster. Just the best method for absolute consistency.
If you are only shooting for recreation (paper/game/cans) its your firearm so clean as you see fit. Maybe you don't shoot very often, compared to military or LE designated marksman, then a spotless clean barrel might be best. When it comes to cleaning, a firearm is similar to a nice car... don't neglect and don't obsess. If your driving it regularly, service as prescribed or needed. If your not going use it for a long while, make sure the oils clean, fuel is preserved and, the tires will hold before you park it. That way next time you pull her out she doesn't miss a beat. Or say screw it and put gas in a diesel, oil in your radiator and, 2 stroke in your tractor... again joking.
As long as you don't have a highly appraised historical firearm I honestly don't care how you clean it. IT'S YOURS so try cleaning it with a sand blaster... joke but seriously.