At this point, I'm thinking the spine is too weak, even though the arrow chart shows this to be an acceptable arrow for the draw weight and length. The centershot is definately correct. I've been shooting for 20 years, the difference between my old High Country's and the BowTech are in the eccentrics. I think the Solo-Cam is just putting massive amounts of energy into the arrow at release, and the spine just can't handle it. Easton suggested either 2315's or 2512's. I would rather shoot the 2512's and pick up a little speed, but how will they be for hunting? I'm concerned about the thin wall thickness. Has anyone used them for hunting purposes? They would be fine for target and 3-D.