Some students believe that the March curve is more difficult because it tends to be more unpredictable. This is due to the fact that there are often fewer students taking the March SAT, and the test makers may be more likely to experiment with different types of questions or curves.
Other students find the March curve to be easier than other curves because they feel that the questions are more straightforward. This is because the March SAT is typically the last SAT of the school year, and the test makers may be more likely to focus on testing the material that has been covered in school.
Ultimately, the best way to prepare for the March SAT is to practice with a variety of SAT practice tests and to become familiar with the different types of questions that may be asked. This will help you to feel more confident on test day and to perform your best.