Ahhh, the great debate. I've seen the WW pass completely through an elk out of a 55 lb longbow and a 2 blade head not make it two inches into the side of a whitetail with the same poundage. Where were "the results" for me on that one? Who knows? The problem is there are so many other factors to consider than simply arrow penetration (if penetration was the only factor, why don't we all hunt with field points?).
To answer your questions oldgriz:
1. I think one thing we all will agree on is that a well-placed shot with a razor-sharp cut on contact broadhead will kill a deer with your new setup. In my opinion, whether that broadhead has 2 or 3 blades won't make a difference.
2. I have had exceptional flight with the WW, and really paid no attention to alignment with fletching (as long as they spun true).
I hope this is helpful.
-Vig