Picked up a 15" tMBP and have been using it for the past couple weeks before finally deciding to calibrate the display using an i1Display Pro. Used D65 white point, 100 cd/m2 luminance, gamma of 2.2, and native contrast. I was able to get an average of around ~0.5 Delta E 2000 with <7% variance on luminance uniformity over the screen. Curious what other people have been getting for results from their calibrations, and what settings they've been using to obtain the best results.