i did as you instructed, but in the sketch-app, i noticed a clear difference, in a negative way. but it wasnt too obvious.

when i calibrate clicking the center of the circles (the way the calibrationprogram asks us to click), the sketch-app is perfectly fine to me.

i had some problems with getting the context-menu for links in the browser, so i'll work with your calibration-method the next few hours to see if it makes a difference in other parts of the OS.