I'm not sure what that is saying about your writing, at all. I think much of the time it is give and take. I'm in grade 12 and most of mine consistantly range around the 12 section, but I do every now and then go up to 13 or 13.5. How much of an educated read this machine can make, I think, is limited. It judges passive voice as a set back, far as I know, as it does with WperS.