I used it in 2 races and it worked flawlessly, didn't notice any hiccups and didn't have to restart it or anything, very good software
here's settings i use:
positioninterval 50
shortrange 45
longrange 100
panelbackground false
paneltop 0
panelleft 30
panelwidth 140
panelheight 140
dotwidth 4
dotheight 7
tested on 1920x1080 fullscreen
this could only be better with adjustable transparency