I am doing a 0411 pcm swap in my 96 vortec 5.7. I have a used v6 calibrated 0411 pcm. After I flash my base express van file, what is my credits liscensed to? The Vin that is previously in the pcm? The Vin I flash in? Or just the pcm itself? I am debating on just flashing it myself or buy it already flashed. Anybody?