To sum up how I feel about this, I'd say there are three factors: physics engine, lag, and bullies

Totally different thing: I forgot to brag about eliminating Wellington86 on sebenco reverse. One long rocket shot at the end of the 'little turns' before it goes down and left, at the beginning of the track. I was just getting out of these chicanes, fired the rockets, and one of them reached Wellington when he was about to pass over the bonus pad. AG Assassin unlocked right there!
So... Thanks mate!