Sorry, I have had trouble with the profile page for awhile now. No, I never did figure it out. It seems to come in the hot months each year. It is gone now that the temp has changed in the cooler months. Just to be clear, the problem with timing at tip in is still present but no drivability issues continue. The drivability issue was a stumbling at tip and that is gone. It is possible that the two are connected but only causes a issue when ambient temps and humidity are up.
I am still working with my son on a new custom tune to work around the timing dropping at tip in. We purchased the SCT Software to edit the existing tune or create a new custom tune all together. While gearing up for that the truck has developed a new issue. Rocker noise above 2700 rpm's. I have adjusted the preload three times. I have replaced the lifters, rolled the pushrods on glass, and Inspected all components. I guess the next step is replacing the valve springs unless I can identify the problem in another area. It sure sounds like a rocker slapping.