Vaughan 4.0 destroys that filter. Here is how the Advanced level specifically targets this:
At an advanced level, Vaughan assumes you know the rules. They don't care if you can conjugate "to run." They care if you can use "to run," "to run into," "to run over," and "to run out of" in a split-second decision during a heated debate. If you are an advanced learner, you have a specific problem: The Passive Filter. Curso de Ingles - Vaughan 4.0 - Nivel Avanzado ...
Beyond the Classroom Wall: Is Vaughan 4.0 the Ultimate Stress Test for Advanced English? Vaughan 4