[yummyfajitas]

I think you aren't supposed to start with hundreds of cards. Start with 10, once their frequency drops to once/week or less, add 10 more, repeat ad nauseum. Since the frequency of cards drops integrably, you'll always have a constant and manageable number of cards to review.

[cblop]

I was adding 5 new cards a day, which seems to be quite common amongst language learners. I figured the SRS algorithm would take care of giving me a manageable frequency.