Sound Sets. Best option?

Hey.

So, for my latest game ive decided to have soundsets for all the characters. (Playable ones that is.) Which way would be easier? Overlapping one of the soundsets I wont use (But might accidently use) with the sound files I want? (Like changing from My-Imported-SOUND.WAV===>Sheep.WAV ). Or creating a whole new soundset? If so, then what do the filenames need to be in order to use them at random like normal?

Thanks.

Overlap is easier. Just name em like they are named in the sound editor including the directory path.