Score fluctuation when mocking exams?

<p>HI people!
Do you have the situation that your scores fluctuate quite much doing different mocking exams(big blue book or Princeton 11)?
Recently I have taken 7, and my CR scores are 640--twice, 680--twice, 720--three times.</p>

<p>What's the problem with me!!
Going crazy..!</p>

<p>big blue book rofl.
Mine are fluctuating very much too. Just hoping everything’ll go all right on test day.</p>

<p>Yeah。。 hope so…</p>