I think this a very good course BUT the reason I did not give it a great overall mark was......1) I think that you should insist that everyone gets the book. That is the ONLY way that people are going to review the information and go over it with other people. I will review my book 3 or 4 times a year. 2) I made 7 mistakes on the final. If you do not tell me about my mistakes then how am I supposed to learn. For all I know my answer on the buoy question was right and I go out and make a huge mistake on the water. 3) I know that you are worried about people cheating BUT it is still very important that they are given the correct information. You need feed back from your tests. Take care and good luck.......Ron Wilkinson ps........Our book will always remain on our coffee table at the lake for all to read including our grandchildren.