Let me preface this post by saying that I think the new blink functionality is wonderful, and I prefer it way more than the old blink feature in ns1 that made the fade look like a flying superman.
That being said, I am not digging the blink effect overall right now. It seems way to technological and doesn't fit with the Kharaa's overall biological feel. It seems some thing far more appropriate for the marines. I would prefer something where the fade breaks into bits of bacteria that disappear into the air rather then this almost electrical pulse affect it has now. Maybe it could even leave a tiny patch of infestation for a few moments too that way marines even have a visual trail to follow when looking for a blinking fade.