Let's see......

I have a custom tune with 17* of timing. I've been able in the past to add timing using the global feature. I have varafied this using the datalogging feature on the Pred.
I added a 6# lower today so I decided to remove timing or lets say lower the timing below the base line of 17* which is indicated as 0 on the adjustment scale..

Still following me?

When I go to remove timng below 0 ( 17* ) on the scale it acts like it accepts the command.
Now when I click on it again to go back in the global timing scale it shows a value or number of 107378972 inplace of where the 0 spot on the scale is. The little dot that you slide to adjust is at the +4 as soon as you push thr scale in either direction. It's allmost like it resets to a default value or something?

 

Hummmm what did your tuner say?

 

I also have the updated Predator version, and mine does the same exact thing. Ignore those numbers, reflash your modified custom tune into your truck, and check it. You will find that it reflects the modification you made.

In summary, when I take or add global timing and press enter, I exit out and immediately load the newly modified tune without checking those numbers, and it's always worked for me. I'm thinking it's some kind of computer code that doesn't make sense to laymen (like me).