I think the best solution would be to do away with the learn ahead limit entirely. Ideally you get to the end screen and it says “you have finished your reviews. Your next study cards will be ready in X minutes. There are X learning cards left due today” and then there would be a button that says “Study them now” or something and allows you to skip that review. That would be far more user friendly. Perhaps @dae would be open to something like that?