#Logitech G203/G Pro #mouse side button #repair - how to get it right, the 1st time:
IMHO (after repairing mine the 3rd time), you shouldn't waste time fiddling with wires.
MAKE SURE the switches are flush with the PCB - conduct actuation pressure directly into the PCB, since the non-through-plated vias/pads are quite fragile.
REMOVE the solder mask (green coating) from ALL traces, and bulk it up ("tin it") with extra solder, especially near the vias/pads.
#DIY Improve mechanical strength!