Fumato valve on pan, magnets where you want either on pan, filter, or both. I use silver perm marker that i marked around magnet on pan so i put it back in same spot just in case there are any shavings that exist that didn't flush out when oil was drained from pan. No more wrenching on/off plug, no more leaking plug gasket/seal, any metal is captured in one of two places if it exists. I don't know of any other ways to capture metal stuff other than adding a centrifuge secondary oil solution for the really small sludge stuff. But that's really a solution that focuses primarily on other crap in oil that your filter can't get - different discussion really. Open to other suggestions as I'm sure there's probably something to learn here as I always do.