Reduced TM, now neck breaking shifts

[BADFNZ]

This is on a 2011 Sierra 5.3.

I reduced the "Shift Tq Factor" from 1.0 to 0.5, and I got extremely hard shifts at WOT. So I upped the value to 0.8, but still got the same thing. So I put the values back to 1.0 and changed the "Shift Tq Factor Adder" to 0.5 but no change. Then upped them to 0.8, no change.

So basically all I have now is the "Shift Tq Factor Adder" at 0.8 but I'm screeching the tires on the 1-2 shift. This seems a little excessive. I have reduced the Shift Times to ".17" but haven't messed with the Shift Pressures. I've also disabled "Stall Tq Mgt" and disabled "Tip-in ETC limit".

So will just a small .2 reduction in TM make this big a difference? Is anything else going on here? I can handle shifts like this in my Camaro, but my wife and 4 month old don't appreciate them.

[madvette08]

Bring the shift times up to .250 or .300. The TCM will increase pressure to obtain quicker shift times.

Set the Shift Time Factor and Shift Factor Adder to 1.00. Set the Adder Modifier table to -0.700. That will be a 30% torque reduction with 70% available Torque during the shift.

[BADFNZ]

Bring the shift times up to .250 or .300. The TCM will increase pressure to obtain quicker shift times.

Set the Shift Time Factor and Shift Factor Adder to 1.00. Set the Adder Modifier table to -0.700. That will be a 30% torque reduction with 70% available Torque during the shift.

Don't you mean set it to -0.300 to reduce it 30%?

If the formula is 1+(1*-0.3), which is 1+(-0.3), which is 0.7, or 70% TM. Am I correct?