An example, I go to dual-lightning a dear, only to have a kill cam slow time and remove control from my character while the wounded creature continues to run away half way across the world, out of range of an actual kill shot!
If there must be kill shots please create a toggle. I might use them sometimes. But in any case, please please please ONLY activate them if the shot is calculated to actually kill the target in question. It is too much of an unnatural interruption otherwise.
Like a baseball player that pauses to snap an iphone shot of himself mid-flight only to miss the ball he was going to catch!