Dent is the best way I can describe because that is what it looked like. I had never seen it before. Problaly what happened was it cracked on the inside but didn' t crack the outer layer(s) of the shaft and the layers that didn' t crack sunk in from the lose of support from the bottom layers cracking and the direction the inner layers were pushing. But I don' t know. People say carbon arrows don' t bent but the do in fact bend but I think it is more of a problem with the layers of carbon weekening from a hard hit from another shaft, that is just my theroy.