Initial reports had the 7475 as not only being stronger which it is, but as having better divergence, now they are said to be about the same, but if you can afford the 7475 that's the better one.
Those are really sharp. I wouldn't personally push that diode past 1.5W. Expensive to blow and you will certainly never see a difference between a 1.4-1.6W one anyways. Honestly not sure why someone would buy the 01T. Other than $35 what's the advantage? $35 isn't enough at $200 to make sense. Anyone else see it differently and why?