I use the Frankford Arsenal rotations tumbler and media separator. I dump out most of the water from the FART tumbler, being careful not to dump out any pins or brass. Then I put the pins, brass, and any soapy water left into the FA sifter. I fill the tub base halfway with water, attach the lid, and rotate the sifter about 50 times, reversing direction every complete turn. I dump the brass into a towel to remove excess water, and then transfer the brass to a re-cycled food dehydrator. I very rarely see a pin remaining in the brass when I follow this procedure.
I pour the pins from the tub base to the tub lid. The pins are still wet, and won’t all flow into the lid, so I gently spray water from a garden hose to wash them into the lid. I rinse the pins and leave them in the lid to dry. The lid has a screen so most of the water drains off very quickly.
I have the FA magnet, but normally only use it to pick up any stray pins that got away. Any magnet could be used for this purpose, but the FA is handy with its quick release feature.