I currently have a 3500 TCI Streetfighter stall and wanted to add a shift kit for a firmer shift. I've heard that if you add a shift kit with a stall and have it tuned that it raises the pressure in the lines too much and causes severe damage. I'm going to have it tuned w/LS1 edit professionaly. Should I skip the shift kit??? I need experienced input I've heard conflicting info this...THANKS!