I have a 2k GT with the below mods. A PI 2800 Converter is being installed this weekend and a dyno tune is scheduled for the 22nd at True Blue in N.C. I have been told that the shifts will be "mushy" after the install and must be firmed up. Some say the only way is with a shift kit and others say it can be done with line pressure through the chip (using chip now). I also heard that the shift kits seem to ruin lots of these trannies. Can anyone that is running this converter using a chip to firm up shifts let me know if it is satisfactory? Before the inevidtable replies regarding a cooler come in be assured that there will be one there this weekend! Thanks for any feedback.