you dont need that, i agree it would make you sound better...but obvously its not needed..just make sure you talk bout everything they possible could want. use a couple diagrams n proper eco talk... any1 seen the exempler micro-strucutral essay... pretty pov id say.. no diagrams..not great eco language..little figures....im definetly not saying im definently getting 18+ essays. i prob wont. but dont worry about non-syllabus stuff if ya dont know the syllabus of by heart... just get good figures...