I think you guys are a bit off the point here: this triple top is really made for somebody who needs (wants?) triple the head pressure of a single DDC, and is not really for somebody who just wants to increase flow rate. Now you ask: "Who on Earth needs to treble his head pressure?" I have no idea, but it would have to be somebody with A LOT of restriction in his loop (8 quad rads maybe?), or somebody pumping up a rather large vertical height. Maybe DB can think of a super tall custom monstrosity (like 10 feet tall!) that would require treble head pressure, but otherwise, I don't know who really "needs" it in a normal sized case with normal parts. However, if you want the awesome pumping power of a 280 pound linebacker in your loop, this will do it.