Ribwarmer - Should I Re-do the Right Shoulder?

Well, I started sewing up the Ribwarmer. And the one thing that I worried about the most, happened. There is a distinct color difference at the connection of the right shoulder and the right back/front part - you can see it in the second picture below near the top right corner. When I was knitting that part, I had thought about cutting a section of yarn with closer color variations and re-do the right shoulder. Then the lazy part of me said - well, maybe it is "on" the shoulder, you know, as a rectangle that may just look like a shoulder pad. And I would be okay with that.

But as I tried it on (with lots of pins holding it together, I almost poked myself...), that line created by the color changes is right next to my neck - very visible. Sorry about the photo qualities, I tried to take pictures of myself in a mirror, and it is hard! I know that if I don't re-do it, I would be so conscious everytime I wear it. But fixing it is not exactly a piece of cake. I will probably need to graft the new piece onto the main body. I hate grafting, but it's only 16 stitches... Should I re-do it or not?