Quick and dirty mod here.
As you know MX revolution have a bit too stiff middle click with partly breaks its role of best mouse ever.
So I modded it in the same way I modded the little brother VX.
So let start
#1 remove the three antifriction feet (and put them in a safe place)
#2 Unscrew the four screws.
#3 open the mouse slowly and disconnect the flat cable who connects the upper and lower halves of the housing
#4 unscrew the 1 screw on the photo and pay attention to the small plastic block, then remove the wheel assembly
#5 remove (or shorten) the tiny spring responsible for the middle click stiffness
#6 reassemble the mouse.
#7 optionally use the
aftermarket teflon feet instead of the original ones.
That's all I hope it helps.