I have gotten HPtuners and I can not seem to find a way to make the trans shift harder.Under transmission-Auto shift properties-shift pressure-Normal&performance tables-I have adjusted the tables up gradually to my max pressure of 96.I have also adjusted the shift time tables.Still the transmission does not want to shift hard.Oh well guess it is time for a Corvette servo.By the way this is a 06 Silverado w/5.3.
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Goto the torqure reduction tables and reduce the amount of TR.
Goto the desired shift time tables and reduce to 0.2s.

Removing TR/TM is a debateable thing, search the forum about this.