With apologies to all, I began veering dangerously off-topic in the thread on Colin’s PBP Facebook game. Let us continue here, if there is any juice left in the discussion.
We had the brave, and very forgiving, +colin spears agreeing to trial a mark-experience-on-failure (ie roll of 6-) as occurs in Dungeon World. My prediction is that it will encourage risk-taking among MH players, and since risk-taking is most of a teenager’s job description…
This is (technically) a rules hack.