...Man, I haven't posted here in ages!
As for Boba Fett's voice... all in all, I think Jason Wingreen's performance outdoes Temuera Morrison's in all aspects. As much as I like the work you did to Morrison's voice, GoodMusician, I think just switching whole-sale back to Wingreen is the best option. Of course, that's what I think. What you did was great; the inflections on the word 'dead' could be worked on a little more, though.
Still, I could live with either the retooling of Morrison's voice or just switching to Wingreen's voice, so long as the 'retooling' brings in the menace in Wingreen's tone that is missing in Morrison's.
Of course, Adywan has the final say here. We'll have to wait and see what he thinks on this.