Re: What is the best floating fly line color?
We need a beaten-dead-horse emoticon.
But to answer: color effect differs with the location (water color, depth, current, fish species).
Anyone who has fished for Permit or Bonefish in crystal-clear water knows that a false cast over a fish will be met with an explosion of water and a lost opportunity. Your line can be white, green, pink, or yellow; won't matter.
Fishing in glacier melt (milk), it makes no difference.