RE: Just something I've "surmised" on.....
I brush my teeth in arm and hammer before I go out, too. And I'd like to think I have a healthy oral hygiene....lol. But I'm STILL betting it gets us busted more than anything else. Think about it. Your clothes are washed in scent free detergent......your hair is covered.....your face is covered......your hands are covered. You're wearing rubber boots.
I wear an UA facemask......a scent-blocker facemask (for warmth, mostly) over that.....a stocking cap or hat......and I do breathe through my nose.
I still use the DDW mouth spray....and I chew the gum.
Everyone's entitled to their opinion.....but I come across a lot of guys in everyday life who's breath stinks to high heaven. I'm sure they brushed recently, too.