I couldn't get a solid run in, best I could pull off was a 1.98 60' 12.6@111mph. I had to baby it out of the gate 1st and 2nd or it would do this:
6L80E Issue - YouTube

Are you referring to the 8 sec mark where the rpm dips at 4800rpm? That's my converter locking.

 

About your second vid, that has to be in your tune. My truck doesn't ever do that. I turn off my traction control and stabilatrac and have no issues.

 

I think so too. Every thing seemed fine when it was on the dyno. I hope to have it sorted out for the next track day.

 

What did your rcsb weigh? My ccsb truck was a hefty 6090 lbs with me in it.

 

It's probably close to 5000 with me and a full tank