Jedi Grand Master has a seat on the Jedi Council so putting both is sort of a waste, no offence, as the Grand Master is the Head of the Council.
Also, you went for Grand Master and your History is very short....thats not good seeing how the Web-Master wants peoples History to match the Rank they would like....sorry, but you will have to add more to your history....I'm not trying to be a jerk or anything.