Thank you. Yes, I've noticed that flatted tubeless tires, when taken off, have some white stringy sealant along the bead and pretty much nowhere else. So then how is a tubeless tire supposed to provide any anti-flatting benefit, other than no pinch flats, which no one who knows what they're doing gets anyway.

I assumed because of these no-flats claims, that the tires I was seeing had flatted because their sealant had hardened through owner neglect and wasn't supposed to be that way. That's not so? They're supposed to be this way? So then, how does that work? I can see I need some education about this tubeless business.