Tangent on skill synergies:
Synergies are quite interesting. What do you think would be a viable skill boost from a synergistic ability? Half maybe? Or a third?
For example, if you have a level 12 weaponsmith who is also a level 0 armorsmith, should he function as a level 6 armorsmith? Or as a level 4 armorsmith?
If all metalworking skills were synergistic with each other (which does make a certain amount of sense, as its all working with metal on a forge), and could a dwarf who is a legendary weaponsmith, legendary armorsmith, legendary blacksmith also function as a legendary metalcrafter even if the dwarf has 0 skill in metalcrafting?
But on the flipside, could synergies boost skills beyond legendary+5? What if you have a dwarf who is legendary +5 in all metal working skills? As they're all synergistic with each other would there be any benefit, or should synergies only be beneficial for dwarves who have yet to reach maximum skill in any given job? If a dwarf is already legendary+5 does he really need any bonuses? Of course if synergies can apply to boost a skill beyond legendary+5, then new skill levels must be created in the game engine to use these synergies.
Maybe the very high skills, like legendary+10 or +20 can only be reached through synergies? The individual skills are still capped at +5, however through synergies they can be boosted even higher.
These could apply to any skills that work together well, including military. A warrior skilled with an axe should be much better at using a sword than a new recruit is, even if the axedwarf has no prior experience with a sword.