Thank you very much!

Umm, yep it's there. Talk about feeling stupid.

I think that answers all of my questions, but just for clearify...if I want to restore the vehicle's original factory tune, I need to do a vehicle backup then download the original .cry file to the Predator, right?

Background: I had the hard shift problem with the Predator and my '00 Silverado 5.3. last year. I was sent 2 custom tunes to fix the problem. One was an 87octane tune and the other was a 93octante tune. I installed the 87 custom tune as per the instructions and all went well.

Fastforward to this ...

Hi,
I have been reading about the part throttle shift firmness problems with the 87 octane tune. I am having the same problem with the 93 octane tune. The truck (2k silverado) shifts fine when driving normal but once it gets floored it then shifts VERY hard during part throttle upshifts. I also have ...