I posted this once before, but now that the game is actually released I think that this is worth revisiting:
Considering somatic components for spells, I think that it's important to be able to empty just one hand instead of having to switch both. For example, a cleric has a mace and shield. If they want to cast a somatic spell, they need to switch weapon groups. In the current implementation, if they want to keep a shield up, they have to have 2 shields equipped (one in each group(shield+mace and shield+unarmed)). Maybe this isn't a big issue, but what if you have a nice +2 shield? If you want to cast a spell you have to switch to your plain non magic backup shield just to have a hand free?
The best solution in my opinion is to have each hand have a weapon toggle. This way the cleric could keep the shield equipped in the left hand, but swap the mace for a free hand in the right hand. To be fair, doffing a shield shouldn't be a free action anyway and this could make it easier to implement the tabletop rules (just a side benefit, not quite as important).
Again, sorry to repost what I posted 5 months ago, but the game is in full release now and has a larger audience. I am wondering what others think about this.
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