Checked out the vids on Sig's site...
Very cool! Though I would have thought it a mortal sin to ever run a brush muzzle to chamber, but he was going back and forth in that video..
His barrel bore procedure was:
1. brush dry
2. patch solvent
3. grab a donut, a few minutes to soak.. 10 or so.
4. brass jag w/ patches till scrub until dry/clean
5. lube then patch till dry
Good stuff.. nice to actually SEE someone do it. Not that it's anything hard, but his reassembly functional check I learned something about the disconnect check. cool beans.