I would like to add a couple of points to this thread from the perspective of a slinger.
Sling bullets could infact pierce tissue if fired properly using the right stone or lead gland. The optimal shape for this is a 'squished egg', compressed so as to not comprimise the longest side and also smaller than a full sized chicken egg. An expert slinger could actually fire this while imparting a rifling spin to ensure that it hits its target with the smallest footprint. Perhaps the size and shape of your thumb, thrust forwards.
As for reasons of disuse, training was one of the main as someone already mentioned. I believe this is also why the crossbow was preferred over the bow, when infact it was an inferior weapon in most ways. Other reason being that they needed more space to operate, you could pack more archers into less space.
As for direct and indirect fire, I believe what has been said is mostly correct but I would like to point out one important thing. The spin that is imparted on the bullet is vital and unavoidable. Indirect fire would most likely be done using an underarm throw with a drop spin, reducing the height of the bullet rapidly throughout its trajectory but also allowing it to be fired at a much higher angle. The direct fire could be done a few ways but almost certainly done overhand, this actually outranges the other throws due to the spins, which can be acending or rifling.
If the EB team has specific questions regarding slings, the fellas at slinging.org are reallife modern day experts with an eye for historical accuracy. =)
Bookmarks