Weird shift flare T76

[pinstripebob]

Hi all,

I played with shift points in my wife's 2012 Cruze a year or two ago, and there is a very specific condition that causes an odd up/down/up of RPM. It's easy to replicate in our neighborhood, but around town it's difficult with traffic.

I finally had time to do some logging, I got it around frame 19,100 in 3rd gear in the attached log. I thought it might be the TCC locking/unlocking, but looking at the log I almost think 3rd gear isn't fully engaging.

Could someone have a look at this and let me know what your thoughts are? Typing this out, I may flash the stock tune and see if I can replicate it with another log.

Much appreciated!