I used to know a female skeet champion. She had a wall of first place medals. The wall in the local club house she owned not a small office wall. Her attitude is why bother cleaning the barrels. She said every time she shoots it cleans the barrel. since then I simply run a fuzzy stick with a little Remoil sprayed on the tip (every few times) a bunch of times and spend my time cleaning the action. I don't see any disadvantage. Anyone with clear evidence that it matters?

So many guns, so little time!