As of now, it is best to put points into the tenembarium skill. The other skills are a waste. This is a major design flaw.

Before you upgrade anything with tenembarium, threw crafting or blacksmithing, upgrade your armor or weapons first. Once you add the tenembarium, they can no longer be enhanced. frown I think that is a bug.

Every time there I run into trouble on the road, there is always a dwarf at the bottom of it. Don't they know how to drive above ground?