I still prefer tuning Gen3 and Gen4 cars/trucks with EFILive over HPT, but everytime I have a guy come in with a T43 (6L80e) with an aftermarket small diameter stall, I have to go get my HPT cable so I can tune the TCC regulator gain/offset to keep the lockup clutch from slipping/surging. Is there anyone possibly making CAX files for this?? That or in the latest HPT beta versions they have a Desired TCC Pressure table.