What makes you think the "Likes" is just for you? And no, I will not explain it over again as to why it's "hidden." Personally, I like to discuss the topic privately, but I don't like PM'ing. And to be frank, this discussion needs to be in rhe Master Zone but knowing how that's so popular right now, it really doesn't matter.

I gain nothing for doing TTS3 mod, because I don't own any device that uses TTS3. Furthermore, even if I did, I don't have the need
to mod it other than a morbid curiosity.

The naming is to prevent overwriting the original and has nothing to do with correctness. Rename it if you need to.
Do you hear the phrase "Turn left on Main Street." anywhere? It's supposed to be a test phrase. I'll get you a test file tomorrow.