After running the swab through the barrel, it cleans out the paint, yet leaves a small layer of film over the inside of the barrel from the excess paint it doesnt clean out. It's not very noticeable at first, until you take a few shots, then you'll notice spin on your balls, causing them to go in pretty much every direction.
Now i can deal with that, just run the swab through it a few more times, no prob......HOWEVER, I was using it last weekend, i chopped a ball, and ducked down behind my bunker to clean the break. I stuck the swab in, and pulled it back out. When i pulled it back out, there was only half the swab in my hand, the other half was jammed in the barrel, so i had to call myself out. to go offf the field and get that @%%#@$ thing out of my barrel.