Well, I just got myself the Otterbox Defender, together with the Utility Series Latch...
The blurry screen was the same for me for a certain short period of time - while the built in screen protector (I also do not have another screen protector below it) adapted/ connected with the device's screen, but it was gone after a short period of time.
Now, although the defender is definitely making my precious device substantly more heavy, it also makes it much safer. I am really looking forward to my next ship inspection where I will put it at live-test in harsher environment! But as for now I am really convinced of it! THAT is what I call a quality product!
☠ stay safe ☠ stay legal ☠