Plus...some manufacturer's say they have a 2ms response time.....
when in reality they post the grey to grey response time....which relates to 5ms black to white
So, most of the 2ms response time that manufacturer's state is not the Black to white response time.
Samsung monitors do state the black to white response time....from what I understand.
There is no standard for this, so most manufacturer's state the grey to grey response times .....that is a great marketing ploy....it makes the monitors seem better than thay are.