Is sparknotes really that accurate for math IIC?

<p>I've been studying for the Math IIC test for about a couple of months now, and I've taken three sparknotes tests (scores: 640, 700, 660). From reading the forum, apparently they're supposed to be close to the real thing, while barrons is supposed to be a million times harder. I've been scoring in the mid 600's for barrons, and I took one of the collegeboard tests in their prep book and got an 800. Should I continue to use sparknotes? What could be the problem?</p>

<p>I took one test from both Barrons book and Sparknotes site and found them very comparable in terms of difficulty level. I have yet to take the real test (October), so cannot speak for the official one.</p>

<p>I thought SparkNotes was ridiculously easy, but I haven’t taken the real thing yet so I can’t compare.</p>