I installed the LN Spin on adapter today. I had just shy of 5k on a Napa/Wix 7211 paper filter. The one with the plastic sides and it did not disintegrate at all. But I did find some particles in the filter when I tore it open. However, none of the larger (circled) particles where magnetic/ferrous. I ran a magnet over the filter, and only pulled off a few tiny sand sized particles.
Looking forward to comparing this to the spin on filter with hard drive magnets in 5k miles.

Originally posted in:
Manual Transmission Drain Plug - Magnet?