If the way partitions expand is a failure, then I'm a fool. I've been shooting partitions almost exclusively for 15 years or so. I couldn't be happier with the performance. I love the way the front section expands/explodes. It does fantastic damage to the lungs, and yet, you can always count on the lower part continuing to penetrate. I've read that a-frames and the like might retain more weight and even leave a bigger hole. I've also read that they don't penetrate as well for this same reason. For an average shot at game, day in and day out, I wouldn't change partitions performance even if I could. Accuracy wise, I've always been able to get atleast 11/2" groups with most guns shooting 1", and some shooting signifincantly better. A great product at a fair price!