The primal rage is certainly the best ball I have ever thrown, and may just be the best ball ever made! Every time I try to throw something else at any house I bowl in, my scores just seem to suffer due to not kicking out corner pins. We are on a mini vacation right now, and I brought one ball with me to throw at a bowling alley in this area. Of course I brought my primal rage. I could carry everything with it until I would burn up my line, causing he ball to not finish. I would bump left a little and proceed to start carrying again. The ball read the lanes like a dream. I ended up shooting 659, which is really good for me. I missed a few easy spares. I threw another fourth game, and ended 181 or so with back to back 8-10 splits in the 9th and 10th when the ball didn't finish.