I don't disagree with the above, but must ask what "accuracy" means. In the video of Lyle Radke the other day, he mentioned "accuracy" then quickly qualified that with "that is hard to measure." We see a lot of statements regarding the accuracy of this and the accuracy of that and particularly the accuracy of condition and quality ratings and the accuracy of appraisals. Yet, no one has defined that term in those contexts nor, more importantly, how it is being measured in order to draw the stated conclusion. If accuracy is assumed to have the usual meaning of being "correct or precise" then how is everyone measuring it? I expect from the GSE position, accuracy is judged by any difference between an appraiser and the GSE's position on anything (which we know is pliable).