Yeah, while it makes some sense, you;d have to check the gravity throughout the runoff, as Kai suggests, to confirm it. I can tell you that I runoff all the wort for a 5.5 gal. batch (about 7.5-8 gal.) in 15 min. of less. That includes mash runoff, stirring in the sparge water, vorlauf, and sparge runoff. That's about as fast as I can go. So it looks like my fastest time is about what fritzeye slowed down to.