You're better off reinstalling III, VC and SA as clean copies through Steam to downgrade, I don't know about others, but for me this downgrader works best with the Steam SA copy for me. For some reason it don't recognize my hard V2 copy.
Okay, I own SEVERAL copies of all three games on PC. Oddly enough, before I installed the No CD patch, I actually wore out the freaking discs for the 3D era games. Go figure!
My point is I am absolutely NOT going to hand Rockstar another $30.00 for these games I have bought more times than I can count. I own the Triple Pack in pristine condition now because I always play these games with the No CD patch. Otherwise I probably would need to buy them again.
Plus, aren't the Steam versions of these games missing a lot of the songs on the radio stations because Rockstar didn't want to pay for the licensing again when they re-released them? I know that my iPadi/iPhone versions of III, SA, and VC are missing some songs. And lol yes, I bought them, too! As well as the Xbox versions a decade ago.
So whatever I do with these mods, I will stick to the PC versions I have, thank you very much. Hahahahaha Unless someone from Rockstar wants to gift me the free downloads.
Notice that I am grateful for your help here and so I am NOT arguing the points you made about V's map? Just saying.