For those of you following along in the LS Swap planning stages, you can download the HP Tuners software for free from their website, it is legit not pirated and you can start practicing and following along what I am doing, you can read the tune files, you can make changes to them, you just can't write them back to the PCM without buying the hardware / credits. Hope this helps.
https://www.hptuners.com/downloads/