I currently have a predator on an 02 5.3 Silverado, with a custom tune from runninwiththedevil.com. I asked to have as much TM removed as possible and he said that 95% of it was removed. But how can you come up with a percentage of something like this, that is applicable at different sections of the power band? I believe that diablosport gave you a bad reply in saying that "yes it does remove TM". From what I have read only a tuned pcm from a place such as westers garage can totally remove TM.
As for my truck, if there really is only 5% TM remaining, then it must be the 5% that wont let the tires slip from a dead stop. It is slightly more aggressive upon a WOT takeoff, but pushing around 300hp should be able to totally roast the tires on a truck, especially not having much weight in the rearend. The predator even with a custom tune, from my experience, does not release the tire roasting potential that is available.