I understand this but in both cases (270 degrees and 300 degrees) there are control points falling somewhere between two lines, however the trim gets evenly interpolated in the case of 270 degrees and in the case of 300 degrees it inserts two points instead of one in those couple of places. I thought internally arcs were saved as mathematical representations.

Sorry I was trying to reply Michael but I don't know how to use quoting in this forum UI. Is it supposed to be done manually?