For context, here's the proposed feat:
Life is easy on the coast, if violent.
Requirements: Vrusk, level one only
Benefits: Your exoskeleton thickens, giving you Thick Hide 2. Your Precision drops by 2 and you lose the enlightened skill while your Heat Protection drops to Heat Protection I. Your Competition skill becomes flawless, using your career level in place of class level.
Special: You may not gain any Vrusk Flunky or Executive feat unless a character option specifically allows this.
It uses career level (or is that called character level now?) instead of class level so there's no real issue with stacking. If you gain flawless competition from a class, you still have the advantage of being able to multiclass without losing your DC bonus.
Essentially, no matter how long you keep him behind a desk, this guy can thrash you six ways to Sunday.