I've put it in the other thread. If you fail throwing a stone, it disappears, you can not pick it up, what you can do is take arrows from the ground being an archer or crossbowman, or any other thrower class.
As they weigh too much you need a lot of agility. That makes you have little strength, no strength, you can not put on a suit of armor. Archers kill you with an arrow. Currently with my build I would do more damage with a hunting crossbow, forgetting the stones forever.
Prof I want a exchange, You stay with the stones and you give me 3 loom points. Character: Astorga