Cool, I like it!
Not sure if Flight is a good fit though, as I don't remember him having a jetpack or anything like that.
The Stun Gun idea is definitely cool. Maybe if he had Furious Assault and Jolt instead? Though Furious + Accurate is entirely too nasty probably.
Still though, with only 1 attack otherwise, and no real defensive abilities, a Furious/Accurate/Jolt would be a one-trick-wonder sort of deal.
I definitely like the CE, and that you made Droids subject, and since it wouldn't stack with Grievous, I don't see it being too much of a problem. Would definitely be fun to run a squad with this guy, Aurra CS, and some IG-86's.