pv......love the reviews. I just demoed Pacific Classic Gut with B5E crosses, and loved it. Then I tried the same mains with Co-Focus crosses and wow, REALLY loved that. In the midst of drilling went back to try the B5E and now in comparison it felt dead. the gut mains/co-focus crosses is so far the best combo I've yet found. Great spin, very good control, controllable power, excellent touch, and I LOVE the way it feels, and especially how it sounds. Just terrific in my Volkl V1 Classic MP. Haven't tried Scorpion, but I love the feel of the co-focus. Wow, what a great combo. Note: as a reference, I strung it at 60/56 on a Neos 1000, double pulling each main and cross per Irvin's video/suggestion for more replicating the results from a constant pull machine.