Firming up shifts

Anyone have a program or any suggestions on what it change to firm shift on a 4l60e?

Would changing the line pressure table with tunercat help? I raised the line pressure on my friends 94 Corvette and it didn't feel much different. Is there other things that need changed?

thanks
Travis

TTT

Take a look over at Brent Frnaker's site. He has a whole bunch of different flash files. I know you'll find something with shifts firmed up.