Well I fished the new 3.5 Tusa Orange line yesterday, all 5 feet of it to which was added a 1 foot section of the Pink TUSA 2.5 line as a spotter/transition section - plus 6 inches of 6 Lb. FC line to finish out the transition section before 3 feet of tippet was added, and I have to say that the thicker orange line was a lot more visible to me than the thinner pink line was under the same exact lighting conditions. This was under bright sunny conditions with heavy shadows. I am not saying that under some conditions the Pink line may beat the Orange line in visibility, but so far that has not happened to me. If and when it does happen, I will be sure to let you all know.