Retakers: How much of the exam wasn't "covered" in schweser

I’m looking at the 2008 Cash and carry question. Also, “calculating pension wacc”. if i would have used schweser…i would have gotten zero points on this. i was cursing at myself during level II bc the format/style of the questions, along with some of the material seemed to be totally off from schweser. and i did all the EOC questions in CFAI text also. is this gap the same with Level III, or is the gap narrower between cfai text & schweser?