Sorry if I've missed the info somewhere here, but where do we place .scl files for our own scale tunings? I've tried the Aalto folder in Library>Audio>Presets (both user and system) but no luck yet...
Do you see the "factory" scales? The Aalto installer should make a folder /Library/Audio/Presets/Madrona Labs/Scales. This is where the defaults are. You can add your own folders here inside Scales.
Argh... had manually migrated data between boot drives, and see that now... sorry for wastin' your time... found the orig. fact. stuff and voila. ;-)