Mike, if you followed the instructions for setting the bit depth the entire plate should sit a hair below the table surface. The leveling screws are adjusted to bring it flush. You may need to make your cut a hair deeper. Remember when you are adjusting the level to use your straight edge at diagonals over the corners, not across the center which is slightly higher. The rings simply snap apart. They are very snug from the factory, you may need to smack them with a mallet the first few times.