Wanted to report that I tried raising the Spark "low-load-limit" in an effort to help or cure the Tip-in spark retard, and that didn't result any changes at all unfortunately.
And I only messed with the Expected TIP tables a bit more yesterday, but raising them quite a bit under in the area's from 3lb to 12lbs, and from 80k turbo RPM to about 150k rpm. And again, no difference in the limited boost in 1st gear and only 1st gear when starting from a very dead stop or very low role, like under about 10mph.
Over all this tune makes the truck feel substantially better and performance much better all around, but not so much in first gear over the stock tuning.