I am a new diver and yes I believe that the shortened classes leave a lot out that we really should know and refine. I appreciate it when someone advises me if I’m not quite correct (or completely wrong) with my skills. I appreciate it more if it’s done politely. It all takes time to and desire to get better and I for one want to get as good as I can at diving because I plan to be doing it for the rest of my life! I thank the divers that have taken me under their wing to help me along!