The Travelflex's clip opens wide enough to be able to clip onto both halves of the cover.
There is a white dot of light but I think it's because I'm using a screen protector on my 300 (I Wrapsol'ed everything from Day 1) but I think without the screen protector, you wouldn't have this problem (don't quote me on that though). But by tilting the light properly (up and slightly away instead of directly hovering above the screen), I can usually get rid of the "white dot"