I still use the pins when cases are real dirty, they clean the primer pockets out really well. After I rinse the cases several times, I put them in the rotary seperator and spin the heck out of them. That gets 90% of the water off of them and believe it or not, the pins go with the water. I have only ever noticed pins to stick in cases twice. I also inspect each and every case before it makes it to the loading tray and that is how i caught them. Weather you use corn cob, walnut or stainless steel pins, every case should be inspected inside and out before reloading.