Yesterday I did a comparison between Colorado, Niagra and Sky for a client of mine. The Niagra is warmer in the mid freq compared to the Sky, has a lot more air compared to the Colorado. The Sky is less musical in the mid freq, can even become a little clean, not harsh. But put on the Wadia 371 voices became a lot more 3D compared to the Niagra. Silver is superior to copper. The difference between MIT and Audioquest is stunning. You would be a fool to buy MIT cables when you hear these tests. You loose everything compared to the Audioquest. Less drive, less control, less resolution, less focus and a much lower 3D presentation. The new AQ Wild ( I own it, but did not take it with me) Has the advantages of both the SKY and Niagra. Is very open in the high freq, so much warmer in the mid compared to the Sky. ( which I also own) The new Wild Blue Yonder has superior AUTHORITY in every part you Judge a cable for compared to the Sky. I understand why people prefer the Niagra over the Sky. I think it will work better in many situation cause of the more musical mid freq.