I have rolled all of the balls in the Xcel line. The pearl, had such a mild backend reaction that I gave it away to a friend who rolls the ball with almost a backspin flick of the wrist in a straight line standing right and aiming center. It has wonderful pin action despite it's lousy hook. I fell in love with the Xxcel when I first tried it. It was the best hooking ball that I'd ever used, but I had to put a lot of hand into it. I later decided to try the Xxxcel when I joined a league that liked to flood the lanes with heavy oil. It had a terrible pin reaction. A solid hit to the pocket could leave 4 or 5 pins in random locations. I think it had too much forward roll on the back end. Finally, reading the stats that the Xcel particle had the same hook potential, and an earlier reaction, I decided to give it a try. I had it drilled similarly to the Xxcel pin right of ring cg stacked below. The ball outhooks everything else in the Xcel line, and has excellent read and pin action.