[throwanem]

I don't know. Have you tried one? That's neither the rhetorical nor the dismissive response it may seem...

[rzzzt]

The mouse is very snappy compared to a 60 Hz display.

[umbra07]

Just do a basic double blind test. get someone else to switch the hz a couple of times for you, and see if you can tell the difference. i would be surprised if you got anything less than a 100% success rate.