Trackpad lack of fine movement and overrun ruining experience.

[electriccrowbar]

I've been having the same issues, too. Grabbing the corner of a window is practically impossible. I'll try the tuning suggested (thanks for your work on that, Jack, and to Arwen for updating the wiki).

These are apparently called "resize handles" at least in plasma. You have some power to tweak them and should enable "Extended resize handles" if you can. Finding the settings may take some hunting.

I have always found these too small in any DE. OSX actually has a pretty complicated behavior that seems to track velocity at the window boarders to dynamically extend and apply the resize handles. I'm guessing Plasma isn't well developed there.