2ms lcd's versus 5ms

Has anyone had experience using 2 or more lcd monitors with pretty much the same specs, except one with a 2ms response time vs. a 5ms one? For gaming, is the difference noticeable or could it just be considered something negligible?

The difference is small. 2ms monitors usually have no trail at all. 5ms to 8ms will sometimes look like they have no trail and sometimes look like they have a slight trail.