Some questions though, what are small daubers for? I can't really find a use for it.
I read that the wax polish itself would provide waterproofing, should I still layer it with rain &stain repellent spray? Plus if I choose to quickly buff it periodically would it damage the leather if I just do it on top of the spray?
Those are for applying wax polish.
I don't spray my leather shoes, only my suede ones.