Can’t help you on what the stock Z06 does, but try your hard acc. on not warmed up tires it should defiantly kick in. What sticky tires are you using?
I almost never leave the TC on. I do all my traction control with my right foot. I find a bit of tire slip is more fun and it is more predictable. But vigilance is very important!!! I use Hoosier R7 tires.
If you are a bit software savvy, you can load the PDR data into the Cosworth PI toolbox. This is different from the Cosworth PDR reader. With this tool you can identify very clearly your clutch position and see if and when the TC is kicking in. It is free software. (the download process is a hot mess)
Hope this helps

 

Thank you! I’m stock. Running new continental extreme contact sport 02s. Im really impressed thus far.

I’ll try that sw. Today I was hoping to take tc off, leave ECS on and see what changes. If not, try using ps2 mode under track mode comp settings.

 

Also keep in mind that when you are moving, there is more likelihood of losing control then you have from a standing start. Many videos out there of people losing control when they lift to shift this TCS know this and prevents it. You also have a whole raft of different TCS settings to play with in PTM.