I just got back from shooting my Energy Wave string and cables for the first time. I am a little embarrassed to admit this (since I have worked for 20 some odd years in the archery industry and have made my last 3 or 4 sets of string before these) but the best my bow has shot in years (maybe ever). The tune is perfect, timing is dead on, my peep had to be set and I served it myself, made a couple of tweaks to the rotation and never touched it again. Lines up perfect and the bow shoots great.
I will probably never make another set of strings for my bow (I will make some Dacron B55 strings for my recurves and my wife's bow, and my Oneida Eagle). Matt doesn't make Dacron strings in white. I may still play around with some Flemish strings as well. But for no stretch strings Matt will get all my business.