For me the Respect is strong. It has a very similar ball motion as the Moxie, but with more length and a more backend pop. Definitely compliments the Moxie. It comes back from anywhere! I also seem to carry hits that I would have never imagined to carry. It throws pins around to no end.
Break Down is simply awesome. If you've thrown a Break core ball, you are going to expect that strong downlane motion with the Break Down. However, you won't get that backend move. It is a must have in the bag. I have been able to throw this on fresh as well as burnt, broke down shots. The ball reaction is the same no matter what the condition. I can play straighter and more to the right than I would have ever imagined. If you want a ball you can feel comfortable with playing straighter and being able to square up to the foul line, then enter the Break Down. Feel free to put a strong drill on this, or your favorite. This ball is super drill friendly!
All in all, both have their place and I haven't had an issue being able to throw either.