Brian, I was wearing those same shoes many years ago. I had a good mentor who helped me by handing me a HP48 with a COGO card in it, and a manual for both. It was kind of like "take two of these and call me in the morning" kind of prescription for my "ailment". I asked him questions along the way and he asked me questions along the way to mastering this calculation device. Which device do you prefer to calculate with?