What you say makes sense. I was actually feeling a little sheepish, because when my wife bought her new pistol home I showed her hot to field strip it and clean it, and then lubed it up pretty wet before looking at the manual.
Thanks for the advice, and for the justification, as well.
My wife also said that the manual said not to use any solvents, that it would ruin the finish. Is that true of Hoppes 9? Should she use only oil for cleaning? (My first Sig if you can't tell.)