If you do replace the clear lens, don't put an amber colored bulb in there, the reflective backing inside the signal will reflect the color of the bulb in sunlight and make the whole think look amber which defeats the purpose of the clear lens.
I had clear lenses on my Roadking and the difference is when the are not lit depending on the finish of the clear lens they kind of look like they have a clear chromelike finish vs an ugly amber color even when they aren't lit. You get the picture?