lopipati, I am guessing you are only on your 1st play through. your main concern is already balanced by the leveling of Skills. for example at level 1 Mining, each mineral node (Stone, Salt, Crystal, Iron, Cooper, and Sulfur) can be mined with a pick-axe (you dont have to have it equipped, just have it in your inventory) with a minus 10 VP per node mined, but when you level your Mining Skill, it will deduct 1 to VP consumed per mining action.
so Level 1 Mining Skill = 10 VP per mining action or Mineral Node
Level 2 Mining = 9 VP per mining action and so on, currently, Skill Level caps at Level 5
so a Level 5 Mining Skill = 6 VP per mining action or Mineral Node
