It was really easy. Figuring out how to open it was a PITA, but it actually disassembles pretty easily.
How to disassemble:
- Pop the glides/skates/feet off the mouse. There are screws under 3 out of the four that need to be removed.
- After unscrewing the screws, the bottom of the mouse comes out and you'll need to disconnect a ribbon cable.
- Find a little clip inside for popping off the part of the mouse that you press to click the buttons.
- Once that's off, unscrew three screws, two up front, one in the back.
- Next, find the clips holding the two sides together and pop the two halves apart.
- From there, it's just unscrewing PCBs, desoldering, and soldering on the new switches in the right orientation.
The Omrons are easier to click and feel nicer. The Zhij switches it uses take a lot of force to depress and are a lot stiffer. It's not a massive difference, but it's definitely noticeable and well worth it to me. It's enough of a difference that my mom asked me to do it to the wireless one she stole from me.