Normc5 I pulled a plug and looked great no signs of kr if that's what your referring to.
The Buick I believe is like the early ats 2.0t and runs an e39a ecm the vsport runs the same e92 as atsv. The later model ats and buick may have went to it too not sure. Under diagnostic tables it has the boost under and over speed tables. Which I don't normally go scoping through all that but now glad I did. I did raise all the torque tables about 200 across the board rather then maxing out like did in early stuff. So think I hit what your referring to.
With no tcm support yet I am trying to sort of trick it into keeping throttle closed and timing up setting stuff like minimum timing at wot shift rpm up higher so can't pull so much timing on shifts. Yet to figure out anything for the closing throttle though at least when shifting just no trick that I can come up with.
I guess someone with some real smarts could find a way to mess with the actual signs it sees. Just sit and wait for tcm support I guess.