.Good point about daggers I suppose... hmmm.
Although from a purely mechanical balance point of view a Dagger does have 0 load, (i.e everyone will have one). If the throwing knife was brawling it would be taking the -1d to use which neither the throwing axe nor the two thrown spears have to do.
Being able to throw a properly weighted weapon is a skill that needs practice – So it has to go into the main weapon group.
Otherwise you may get three party members with 3 in their respective weapon group - Sword/Axe/Spear, with a throwing weapon each Throwing knife/Throwing Axe/Short Spear.
If throwing Knife was in brawling then that party member would only roll 2d, the other two can throw at the full 3d for their respective weapon (and even throw a throwing knife of their own at the same 2d) seems a little harsh on player 1.
Have I convinced you yet OS?
Though looking at the throwing knife against the short spear they have the same damage and Injury rating. So perhaps for balance I should drop the damage of the throwing knife to 2. A throwing knife would be the same as a dagger then but can be thrown. It has to keep the Load 1 for balance though (otherwise everyone would take a dozen or so).
Throwing Knife 2 14 1 Swords Can be thrown
(still keeps the +1 pierce bonus)
I think that might be a better balance. What do you think?
A Sling requires some skill and practice to use effectively as well. Perhaps such weapons as the Sling, Throwing Knife, Throwing Stick, etc. could be placed in an optional Combat Proficiency category called Exotic Weapons. Or a Hero could simply be allowed to specialize in the weapon (for the appropriate cost).