The only section i'm not good in (700+) is writing, what can i do to improve?

<p>I can get 750-800 on the math and 700-750 on the critical reading rather easily but when I take the writing section it seems like a grind to get 700-680. This seems the opposite of most people on here that can easily do the writing section and not miss any questions or find it the easiest section overall. I want a 800 (I know, I know) on it and will do anything needed to improve. So can anyone offer advice on how I can improve my alright score into a great one? ive tried reading Erica Meltzers grammar guide and read Barrons SAT 2400 writing section but none of those really stuck to where the writing section was easy or predictable. Any help is greatly appreciated.</p>