I definitely agree with BB on the persistence part! It really depends on how desperately you want a good score. All the best!:)
You see, these are the kinds of things that drive me sick about this website, persistence, okay, translate that into strategy. This brings me back to my main point,
most people here, will say the same thing, hard-work, persistence, okay, fine, I get it, and most of us get it, translate persistence into strategy, if not you, someone else.
These websites are to help, encourage, and lead others into achieving a higher gmat score, or a satisfied score. Most people want a top score, are they willing to put the hours, and tedious reviews,
maybe not, let alone try to figure out a strategy by themselves.
Help by really helping, not just by sugarcoating the tip of the iceberg.