Hictop 3DP-11 Stationary Y Axis End Stop Mount

I was inspired by Kverb's "Hictop 2020 endstop mount" http://www.thingiverse.com/thing:1220317 but was not satisfied with his design from the images, it just didn't look like it was stable enough for my tastes. However he did have a good point in that moving the Y axis end stop switch to a stationary mount would extend the life of the switch. So After taking a few measurements of my own and doing a couple of iterations on the design I came up with this, Since I had a left over M5 locking nut and