Adjustable Z Endstop for Prusa i3

One of the early modifications I made to my printer (Hesine M505 Prusa i3) was to add an adjustable Z endstop (http://www.thingiverse.com/thing:1253186 and http://www.thingiverse.com/thing:149882). The endstop worked well until I upgraded my X axis (http://www.thingiverse.com/thing:1103976). With the new X motor mount, the Z plunger no longer lined up with the endstop switch. I create a design based roughly on the original endstop mount that would align with the new X motor mount. I then dec