Derivatives from Kaplan material

Is is just me or is the derivatives material from kaplan severely lacking… just tried the Qbank from CFA website and wasted time just to realise that certain formulas/ areas were either not covered sufficiently or at all and thats why I am struggling with certain types of queatio s!! Eg. Valuing Currency swaps…

For derivatives i think CFAI covered it well, just try to go quick as it may consume time