2016 Silverado Transmission Issues HARD SHIFTS

[roadkill5.3]

I used to get a clunk now and again. 
Ever since I had it tuned with efi live, it’s gone 100%. What a better running truck all around. 
It’s all in the TCM programming by GM. 
this isn’t a post to get your trucks tuned, but this took care of the clunks completely that I was having. 
2016, 6l80

[14silverado5.3]

Had this issue on my 2014. Took me 3 years of going up there and the warranty about to expire and me refusing to pick it up after nothing being found. I forced the shop foreman to drive with me to see so I could replicate. Ended up being the torque converter. Had the issue since I drove the truck off the lot 3 years prior and 25 miles on it. 

[Linecapt]

I just started a new thread under the Engine, Driveline & Exhaust section.  But I received a letter from GMC today stating they're extending their coverage to 10 years or 120000 miles for a condition that affects some 2016 model year Sierra's with the 6.2L engine that has rough transmission shifts or hesitation during acceleration.  As I asked there, does anyone think this letter is GM finally owning up to what we've long complained of?