I'm thinking of getting that combo, so ....

1)how's the tracking on artisan kai g3 red HARD ? any noticeable jitter ? I don't care much about LOD

2) do the stock feet produce scraping ? will i need hyperglides ? do i have to put them on top or as replacements ?

3) Will i be to able to configure the DA to go between 3 profiles ( 450dpi/500hz - 900dpi/500hz 1800dpi/500hz ) each time i press that button on the bottom ?