Chance - the Cordura that Cliff uses is fairly heavy and stiff, and more resistant to flame cutting that I have seen with other bags (and ones I have destroyed). The tight cylinder gap of the FA helps in my opinion as well, and is somewhat easier on the bags. But repeated use is gonna blacken and weaken the Cordura.

I have a Red Tac Gear Tactical Pillow that was once Multicam...now it looks like its been overcooked in an oven. No leaks yet.

My 460 wrecks sandbags like it was it's job. Regardless of manufacture.