This site uses a Leitner system to make use of the spacing effect to optimize memorization. There's no need to review more often; in the literature on spacing that's called overlearning, the reduction of which benefits your long-term retention of kanji/words/etc.

In short, just review the cards when they come up and move on till they reappear, which is in part based on how you graded their ease or difficulty. It seems counter-intuitive, but you'll get used to it and fall in love with whoever made your studying a million times more efficient.

Last edited by nest0r (2011 June 17, 10:46 pm)

If you really want to you can simply delete the cards and add them again and go through the blue pile. Deleting flashcards does not affect stories.

When you have 300-400 kanji and it becomes impractical to review them all everyday or even once a week, then let the SRS do its thing and focus on good stories that let you remember a kanji for several days or weeks.