I know about the vertical cutoff, when the height window is not enough, letters will get vertically cut off for sure.
Some one else had that problem, awhile ago.
Always good to start off with a window of 40 pixels.
But for horizontal, I don't see any adjustment. Adjusting horizontal padding makes no difference.
If horizontal padding is not wide enough,
then these dots .... get put in.
Either the way certain italic fonts were made, creates the problem,
or CSM program detects the italic font edge at a different average height?