appropriate for karate practice?

[Joe Strout]

I've been using Anki and my own SRS for years to study Japanese, but I'm now looking for something to help me (and my fellow students) study karate.

This is a different task because it's primarily about building skills, not memorizing facts.  Most cards will not have a question/answer format; they'll be more like "practice skill X," and I just want to be sure that when it's a new/difficult skill, I practice it more often than old/easy skills.

It seems like Repetitions could do that (if I just leave the answer side blank, or copy the front or whatever).  But the other problem with most SRS I've tried is, they get brutal if you don't keep up with the reviews on the schedule they want.  Reviews pile up and pretty soon you're not getting any benefit from the SRS at all, as all cards are due all the time.

But in this case, we only have so much time to practice, and each skill takes several minutes to do, so we're going to get through maybe 10 cards, 3 or 4 times per week.  I need an SRS system that adapts to that, and still works out which cards to present in some sensible manner (harder/newer ones more often than older/easier ones).  And this isn't something I can easily judge from reading the docs.

So!  As Repetitions users, what do you think?  Would it be useful for this?