book is a big joke, i mean where can u go to get the hardest questions they'll throw at you. we all know the OG purposely hides the hardest questions in there, they only will throw a 750 quesiton sparingly in that guide, the test makers prolly have a protected folder for these types, anyone know where I can find them? Manhattan GMAT
has one but its 79$ EXPENSIVE!
SAYS THEY HAVE 1 for 29$, however, i doubt there "800" level ones.