Agree with menloparkmom. You need that baseline to work from early, otherwise you might get caught by surprise and have your maneuvering room reduced. However silly it may seem for a preliminary test to have this much clout, PSAT is where the money is at, and if you score in the semifinalist range you can look up all the schools that offer NMSF/NMF merit money (there are lists here on CC) and plan your spring Jr. year college visits accordingly. Here is one:
NMF Scholarships: An Updated Compilation