The slightest flex upward will cause the gun to shoot high. Benji guns are known for this. In fact, I do believe Steve has doone oodles of testing on this. I have myself, for an SSP Benji, though an extreme example, flex was present.
"The majority of things in our lives are created by folks no smarter than the rest. Afterall, the world is comprised, and operated by C average people intellctually, academically, and morally. These people are often the great pioneers that set the precedent for what excellence should be."