Thanks for posting your results. I noticed you mentioned abruptly closing the throttle activated DFCO more quickly. That could be part of the reason why I have so much trouble getting DFCO to activate in my Saturn. I'm pretty smooth with the throttle transitions. Plus, it seems to take 2000RPM+ to get DFCO to activate, anyway. And I rarely rev the engine past 2500. So, yeah...
I wish we had access to the computer programming, so we could tweak stuff like that.