I was shooting my Z28 today and when i released it made a loud pop. arrow made it to the target at 20yards and had normal penetration. the nock was spit right down the middle all the way to the back of the arrow. I looked the bow over very well and everything appears okay. I drew it on my draw board and all appears well. Do you guys think there would be any damage that i cannot see that would make it unsafe to shoot?