The sparkly effect definitely isn't something I've noticed before with that particular brand. I went from 14 to 31, just to lighten up and brighten up a bit and I haven't noticed that with either personally. If you're talking about how there's almost a little bit of a color warp that happens on real light backgrounds, almost seems wavy/patterned, I have seen a little of that depending on game, but that depends on monitor too.
GT