So i came up with an edited system for save growth that i feel is more costomizable and balanced, for explaining i will just use the core 11 classes but it would not be hard to apply it to the rest as well.
Basicly, under my system all classes (besides monk) only have a single "class save" as follows
Fort: Barb, Fght, Pldn,
Ref: Bard, Rngr, Rgue,
Will: Clrc, Drid, Wzrd, Socr
your "Class save" has good growth as you would expect but when taking the first level in a class you also get to pick from the two remaining saves for a "secondary save" which will also have good growth. Monk of course would still have all good saves.
So what do you think? Good idea? Bad? broken? im curious to see feedback. (and yes i am aware that it would get rather confusing if you start multiclassing in this system)