Saving your Custom civs

I know in DA that I have played against my last custom race when using a stock race.  You've got me curious.  I just won with a new custom race, I will go look at the game setup and see if both custom races are there, or if only the most recent one is.

I know on Twilight you can save your custom race and load a older saved race

I just tested in DA, and it does appear that only the last custom race is saved in the game.

i'm playing twilight of the arnor 2.03. when i make a custom race and save it, its there for good. i made a race, and then after my first game tweaked it a bit and when i saved that and continued to the next page where you specify your opposition, the previous version of my custom race was there. maybe its just versions before TA.

  The saved data appear as RACENAME.customracexml files in the My Documents\My Games\GC2DarkAvatar folder (in DA).  Move or save them somewhere else if you don't want them in the next game (if you don't use it,  one of the AI can,  even races with your own custom name).