Comparing my truck tune to a Z06 tune I noticed that TCC Lockup during upshifts(D2801) is disabled in the truck tune but allowed in the Z06 tune(the TCC lockup speeds are sometimes less than the shift speeds in the Z06 tune).

I have altered my shift tables to yield downshifting that is more suited to engine load similar to the Z06 tune. But now I have TCC lockup speeds that are only slightly higher than the 2-3/3-4 upshift speeds. So I get a double kick in the seat with the upshift closed followed by TCC lockup. Not to mention the kick as the TCC applies and releases if traffic happens to be moving close to the TCC Apply speeds.

Would there be a problem with setting up a truck to have TCC Apply concurrent with an upshift? What about when towing? I have a built trans and PI multi-disk TC.

Should the TCC Pressure tables be modified for this TC?