I felt that the usual time limit of 90 seconds for top 10 states quizzes would work quite well here, as you don't need many guesses or fast typing once you work out the area of the US you need to focus on. Having enough time to type every non-coastal state might make the quiz somewhat mundane. But if anyone else feels they were allowed too little time as well, let me know and I'll change it. Thanks for your feedback!