I have to agree with Nhisso on this, to use s+10's on anything that isn't end game weaponary is just crazy..
I miss grinding the old way, why not go back to how it used to be? just lowering the grind ability of the weapon that failed, for those with mega cool 15* 50% swords and the like, add a weapon scape or something to undo it and charge 10 mill or something for that.
Just a thought.