The difference between tweaked and no tweak

Move the mousecursor over the image to see the difference between the non-tweaked gradient ramp, and the tweaked gradient ramp. I did add an Output map to boost the bump effect on the non-tweaked version. Which means that the effect is even more noticeable than with just a straight instance. In this case, the difference is fairly subtle, but as they say, "The Devil is in the details". So don't scoff at subtle details.