i finally got a call from a local tuner after 3 months of waiting but i have a dilema, i have a brand new unused sct xcal2 but the tuner does diablo, should i use a diablo chip that is compatible with the saleen ecu but i wont be able to adjust parameters myself or pull engine codes like you would w/ the handheld or should i buy a stock gt ecu and get a handheld diablo tuner thus allowing me to pull codes, adjust parameters and wrap up my saleen flashed ecu and pack it away knowing i will always have the working factory ecu in case i ever want to go back to stock...which will probly never happen