Originally Posted by Melan
You realize that to have a lower debounce time you'll need to change the MCU, right? Simply changing buttons won't help.
I think what he plans to do is using both mice at the same time. He will use the Zowie for movement and physically clicking and the Coolermaster just for sending the click signals.
His hand will be on the Zowie. There will be wires connected to its switches that will come out of the mouse and go to the PCB of the murdered Coolermaster and connect to the pins of the switches over there. When he clicks the buttons on his Zowie, he will send a signal to the controller chip on the Coolermaster. The Coolermaster will then send button click signals, and will do it a bunch of milliseconds faster than the Zowie.
He now wants to disable the Zowie's click signal and would like to do it in software without having to cut something on the Zowie.