I have the X1 which does have slightly rounded corners, I was thinking a more oval shape would not dig into my stomach as much when seated. Maybe not really possible because of the ratchet system. I just make sure the top of the buckle is below the top of my waistband and loosen it up a bit if I will be sitting for very long.dave#
Kore does make 3 different buckles for EDC belt , I'm very happy with mine.