I agree. That's the whole point here, high speed and tungsten; something that is inachievable with any color film, save perhaps for Press 1600 and a filter, which would be rubbish anyways.
I frankly don't understand why there are fast daylight films.... I mean, if it's daylight you don't need that speed! 400 on up should be tungsten, eh? Viva la película cinematográfica!