I've really liked the Defender case, but now want to remove the built-in screen protector that comes with the case and install one on my iPhone 4S itself. Has anyone done this, and does it affect the screen protector? Sounds like it was no problem with the Defender case for the original iPhone 4, but wanted to see whether that's changed before I went ahead and tried. Also, if you have tried this, what screen protector did you use. I had the Zagg product a while ago, and will try something different this time. Thanks.