Berry all the way!!! Every bit as good as the W/C set I had on my Patriot, and about half the price!!! Let 'em settle for about 50 shots just to settle in, and they're SET. No peep rotation probs. Timing hasn't gone off AT ALL. Tight servings, and the best customer service you'll ever get!!!! I have a set on my Patriot, and another set on the way for my Mv2. I'll be shooting Berry strings until they quit making 'em.