One of my colleagues got a 615 with Q83 V83 DI75 (Probably in the first week of August). A friend gave GMAT today and got a 595. His sectional scores are Q84, V82 DI75. Considering equal total sub-sectional scores and yet a lower final score, I asked him to check with the score calculator. The calculator too suggests a 615 with Q84, V82 and a DI75.
It seems that the concordance table or at least the algorithm of percentile calculation has changed in the past 15 days. (Which seems to be the only feasible explanation). Otherwise, either the sub-sectional scores or the final score that flashed on the screen had some error (which, to me, is highly unlikely!).
But now I am curious.
bb , any suggestions?
[Meanwhile, my friend and I, both are eagerly waiting for the official score report]