A.P.Hill, whenever i make new sounds, best to always check the file structure and also naming. Maybe an idea to open the SRS sound file in an editor like Audacity and copy and paste over the original. Save it somewhere else with same name. Backup original then copy your new file in place.
Works for me but it can be trial an error. I will be trying this out in srs as not edited files in this one. If i have any luck, will let you know
Cheers