I think the recharge mechanic is fantastic. No more duration counting, no more magic points, etc… Also allows for heroic fighting styles and maneuvers. A wonderful evolution. And if you need more flwxibility, you can simply use the toolkit rules whereby you can reuse an action card while adding misfortune dice.
That's cool, I'm glad you like it My players just found it a bit fiddly and we were always forgetting whether we'd taken the chit off or not…we lost count too easily (but you're right, we'd have the same problem with counting durations ).
You're supposed to fix your recharge at the end of your turn. If a player is forgetting, that's on them. It's done at the same time and totally unambiguous.