Our group is struggling with how to decide whether to allow Form Rune augments. For example, in the White Bull Campaign episode #2, one PC used his Mobility Rune to augment (technically, "inspire") their Climb skill to climb the walls into Pavis. @Jeff allowed it, didn't bat an eye. My initial reaction, watching, was "o.k., reasonable, but let me think about it". (Note - Jeff, might be nice for education if you occasionally questioned the players, asking them to explain why their Passion or Rune made sense as an augment. They usually do, but this might help others learn )
Certainly C