I also noticed this. I think it's just a bad bad bad lag in the drive by wire config. I bet pretty much any tuning out there (BrenSpeed, Bama etc.) takes care of this. However, I haven't been able to prove that to myself yet. I just dislike it as it makes for clutchless shifting even more difficult that it needs to be. That and when shifting to slow down (5-4-3-2-1) it never seems to actually "lay off" the whole way, until about 2-2.5K RPMs.