Good Point teky - LOL - I am not the one who have mastered simulating the ABS with manual pump braking. As you rightly said, for ABS to kick-in it depends on a lot of factors - speed, wheel lock etc., Also, wheel lock occurs only if you brake, if you never apply brake, wheel lock is not in question at all and ABS will never kick in. Let me know if anyone have experienced ABS kicking in automatically even if brake is not applied. Now, dealing with the situation where you apply pump braking. What you are doing is brake - release - and brake again several times. Think of what inputs you are giving to car - multiple brakes - which is not the right input for ABS to kick in if required. This is the reason why it is advised to apply brake in single stroke in an ABS equipped vehicle. However, it does not mean that braking will never occur when you apply pump braking. This is what i intended to convey with my earlier post. This is pure mechanics and common sense.