Be careful with the Bristled ones, the little nylon bristles will come off and stick to the inside, and turn the inside of your shank into cobweb looking city. I found out the hard way, and I’m OCD and I like a clean sparkly, no crusty looking shanks/airways on my pipes. LOL 
So if you use them, turn on your cellphone flashlight and shine the light inside, you might be surprised too at the cobwebs. 🕸 🕸
So, I now use fluffy only and no more problems, only squeaky clean airways.
I also pinch the fluffy cleaners and rub off excess fluff, otherwise fluff sometimes comes off inside, but at least it’s easier to blow/pick out.

So if you use them, turn on your cellphone flashlight and shine the light inside, you might be surprised too at the cobwebs. 🕸 🕸
So, I now use fluffy only and no more problems, only squeaky clean airways.
I also pinch the fluffy cleaners and rub off excess fluff, otherwise fluff sometimes comes off inside, but at least it’s easier to blow/pick out.