I have to agree, My instructor back in the day told me to use these and when you could pass 3 of them in a row (at each rating level) above a 85%, go take the written. I have to say it worked, I did all my writtens first time pass, and scores between 89-93%. The best part is they are totally free, just have to sign up for a username and password. I definatly would recomend this to anyone..Good luck in your search.