The Martin charts for the 2007 Phantom Elite with Furious cams say that the string has to be 50.5" and the cables have to be 39.25". However, when I use those exact lengths, my ATA is about a half inch shorter than it should be (37.5"), and my poundage is higher because of the higher stress on the limbs. So, I ended up using cables that were 39.75" long, and a string that was 51" long, and now my bow is in spec. So...just for your own reference...I would recommend using lengths that are about a half inch longer than the website gives!