If you are using a computer program, then you don't need to worry about this, but when I wrote out my flashcards, they were innacurate. I fixed that by making them on the computer and printing them, because when you type it's always right. Also, once you finish being able to read them, MAKE SURE YOU PRACTICE WRITING THEM! I didn't and for a bit after, and still now, sometimes I have trouble remembering some of the less used ones, and many katakana.