I started out with a vibratory tumbler and then just recently switched to a Thumlers Model B with stainless steel pins. It's 100% times better and I'd never go back to a vibratory tumbler. It not only cleans the outside better, but gets the inside and primer pockets squeekly clean too which the vibratory tumbler didn't help with. It does this in half the time as well. The vibratory tumbler also has a ton of dust and is just a mess to deal with. With the Thumler there is no dust at all. The only downside is that it takes a little extra time since you have to deprime the cases if you want the primer pockets clean and then afterwards you have to let the cases dry. That's a small price to pay for the huge increase in performance though. Anyone that tells you a vibratory tumbler is better hasn't used the SS pins.