Hi Rinpoche, I am not familiar with the Blue Yonder.... I am thinking that before you go for the swap, you give the cable an in depth audition.... In general it does take 300 to 500 hours for a new IC to yield its best.
In the end, you will be able to determine quite reliably on your own if the Blue Yonder is worth your Devialet in trade in, or it is not. As usual, trust your ears, and listen to our pronouncements solely with the proverbial "granu salis". Cur verba volant, sed sonus manet.
G.
G.