I should also point out that one of the reasons I think it's working so well in the current game I'm MC'ing is that we represent ongoing/forwards with physical objects. There's something deliciously meta about absently playing with a physical manifestation of another character's secret as the session unfolds. Good fun.
Oh my word, that just sounds so awesome! What kind of objects do you use?
We've been using the "When you reset Hx..." move without
any mechanical benefits and it's still been very cool in play; just the occasional "big reveals" have been well received at the table and made people excited to have Hx roll over rather than feeling they've taken a bit of a hit going from +3 to +1.