Found this in the Oil Filter

[jmatta]

I have one of the LN magnetic drain plugs (and the billet filter adapter) and the only residue I find at oil change time is a bit of a metallic paste on the magnet; not enough to worry about. I may send an oil sample in next time to set my baseline, as the car is due for its fall change. The vehicle is going to be nine years old and has just turned 19k miles on the clock this summer...been using Castrol Syntec 10W40, so I'd like to gauge my engine health.

Good idea to cut the filter open, though mine will be a little more difficult since it's a sealed canister.