So maybe someone could verify that :
I use spare/sparior for unspecified animate objects
I use skore/skorior for unspecified inanimate objects
I use sparos for specific animate objects
AND I use skoros for specific inanimate objects
Why would "sparyz" be wrong? Spare/skore are considered adjectives, are they not?
It's a class II adjective, so the nominative plural lunar/solar form ends in -i