Looking over the latest rumor list for the ANH wave brought an interesting wrinkle to mind. I was thinking it would've been nice to see Han and Luke stormtroopers be a running change since the tooling difference and deco change are pretty negligible, and it would free up a spot in the wave for one more all-new character.
Then I realized any running change during Legacy/Build-A-Droid is going to result in an extra droid piece. (As will, in the larger context, army building as a whole.) Would you want Hasbro to hold off on running changes for the length of the BAD experiment (slotting two endor troopers, for instance, as individually numbered figures in the same wave or breaking them up over two waves to work out the change itself,) or would you still prefer running changes to get more variety out of the army builders and background characters of future waves, even if it means one more protocol droid arm?