How do you guys test your brakes? in terms of "bite"ness? Drive to 120 then sudden brake to 60?
I do think like I need to bleed my brakes... Cause i stepped 1-2cm into the pedal still did not feel like it's biting unless i step further down..
Going up and down Genting?

Ok seriously now, just normal to medium braking first then test hard braking until ABS got activated, not necessarily at very high speeds though. If no ABS cars then don't do such hard high speeds braking coz you might loose control as it skids.
1-2cm seems too much, maybe you got too much pedal free play, normally just a few mm of free play. If you press the pedal a little bit, does the brake light comes on already?