Penetration should not change, but impact force will be much higher, think about karate, if you punch someone straight on it hurts, but they teach you to rotate your fist so you put torque into the impact, it hurts a lot more. I saw some pics and videos of these new "high spin" nocks I bought, they were awesome. The entrance hole looked like you shaved a 3" spot on the deer, and then punched a 2" drill into it... and the exit wounds were even better.

Im gonna test the new nocks as soon as the weather gets better... I'll be sure to post results.