I will answer my own question. I have used the Dart flyscreen, the Road Comet, and the NC Street Sheild. For hiway runs the NC wins hands down. The Road Comet still good for shorter trips, the flyscreen looks good, takes away a little of the pressure. If I am going to do any freeway I will use the NC.
By the way...When installing the Road Comet has anyone figured a way to encompass the headlight? What I mean is...how do you get the headlight within the front opening of the shield? Headlight light comes up from screen to gauges..somewhat distracting.