I've never quite bought the idea that using your impulse or warp engines would cause terrible danger to the planet because of the gravimetric interference or whatever.
If that was truly the case why bother come up with devestating weapons that could destroy a planet, all you gotta do it use your warp or impulse drive in close proximity to the surface and voila ... wide spread destruction and death.
But I digress. This was actually very cool and intensely written. I had a powerful image in my mind of that Cardassian cruiser falling out of the sky while reading this just for it shoot back up like a rocket along the smaller ships.
Well think about it, impulse engines are nothing more than a futuristic fusion drive, and we know how devastating fusion can be. And going to warp on/near a planet could destroy it through subspace stresses. Not good at all.