Re: how to hide a planet
There is no mention of a planet hospitable to life Vertigo. Indeed hiding on a planet no-one else want to go to would be ideal. A surface being pounded by asteroids on a regular basis would have many advantages and the bases for these super pilots could all be underground. The underground colonies would still have problems, asteroid strikes being one (strengths & weaknesses) of them but nothing that a bit of shielding could not help with. Or even, small robotic flyers in low orbit pushing back asteroids that pose a danger and even maintaining the asteroids cover around the planet.
I like your idea Vertigo, not so much as hiding a planet but using a planet no-one else would want to go to.
Good link DOE, giant sheep, only in SciFi.