Auto-level sensor holder, for printrbot Simple 2014

My original version of the probe-sensor holder, distorted badly with heat, see last picture. So I had another go.
This time I decided to strengthen the holder with some metal support. I originally was thinking of using coathanger wire, but a look in my odds and ends draw found a 65mm nail, it's 2.5mm diameter.
This nail sits inside the main body. I have used it for about a week now and whilst it has bent slightly, I believe it will hold up.
With only a week of test time this will stay as