Keith covered it pretty well. The only thing I would add is not to come with any preconceived ideas of what the yardages will be. I'm sure they will remind you what your maximum is, but don't plan on using one pin or sight setting all day. Any given class has a range of from 0 to ?. You need to be ready for all of it and know that you will need to evaluate each and every shot you see. Have fun, the courses are sometimes a bit challenging, but who wants to be bored anyhow? I'll second Keith's "Welcome to the IBO".