But why didn't Jim destroy the Courier after collision? Its shields should be weakened so it could not stand a good blow of military laser..
Well, without giving too much away, my view is along these lines...
1. He knew he'd lost his own rear shield.
2. He had no guarantee the Courier wasn't feinting.
3. He suspects the Courier pilot to be 'Elite'. Jim isn't.
4. Does Jim's SuperCobra have a military laser?
5. His only 'ace' is he knows the SuperCobra has 'speed'.
Also, for anyone who isn't a trained/hardened killer, then it's one thing to fight for your life and take down your opponent, but another thing entirely to wipe an opponent when they aren't actually attacking you...