The Z-Axis end stop has been improved this afternoon.
I had some problems with the Z-axis stop, where the set screw was pushing past the microswitch below as the Z-axis tried to home.
The new design features a slightly wider bracket for the microswitch below, making sure that the centre of the microswitch is directly underneath the centre of the set screw above.
The set screw also has a wide boot fitted so it completely overlaps the microswitch.