Look i am almost certian, that they wont penalize me for this. If u dont remember on the fornt cover it doesnt say u have to use pencil, it says you may. This means its optional, u can eitheir choose to or not to.. In da examiners report nor on the markscheme does it say anything about loosing marks. Think about it, if u had to to do it in pencil, wouldnt they write, " All diagrams must be done in pencil"? However on the front cover it says " You may use a pencil for any diagrams or graphs." This is quoted directly, it doesnt say that u have to, it says that u have the option to do so..