In the past I had used a Bristol Vellum 100lb paper to make copies of pages to color with colored pencil. Recently I had used a different paper in a book that was lighter weight with a slick finish. As I did like the result I purchased a few different types of paper to experiment with including this one. If you color and either download images and print or print copies from your books to practice then the type of paper used for both will make a difference. This review is aimed to that market and may not have relevance to others. If you use colored pencils I hope this helps. The papers compared are the Hammermill, the Springhill 80lb Bristol Vellum and the Exact Neenah 67lb Bristol Vellum.This paper, 80 lb Hammermill Premium Color Copy has less tooth or texture than the other two. It makes a huge difference in coloring as you can see from the photo. I used the exact same pencil and tried to make everything the same while coloring. Although in the background this Hammermill paper has the lightest color blue background it actually has two more layers of the same colored pencil. Both of the different weight Bristol Vellum papers had a darker outcome with two fewer layers of color. Also on the background I blended in different areas with different methods. Behind the head and up to the top of page I blended with a Caran 'd Ache full blender pencil. In the largest area on top of paper in front of the head I used Gamisol (mineral spirits) to blend. In a small section in front of the head to the tigers head I blended with a white pencil (Lyra which is an oil based pencil). On the very bottom corner under the tiger's head I did not blend the background at all. I did try to mark these areas out in the margin. When using the Gamisol on this paper, a lot more of the pigment ended up on my Qtip which lightened the background even further in that spot. It didn't get rid of pencil marks or otherwise act as it does with a textured paper. The Gamisol worked the best with the 80 pound Springhill Bristol Vellum.With the Caran d'Ache full blender pencil again I got the best results with the 80 pound Bristol. With this paper this blending method actually worked the best compared to the Gamisol or white pencil. In blending using the white pencil, again this paper had the worst results. I know I was using an oil based pencil to blend but this was the only one where I could see the white laying over the blue rather than lightening the shade of blue by blending. Yet again the heaviest paper blended best with a white pencil. I did leave the bottom corner of the paper unblended so you could compare what it looked like before I blended.With this paper it was almost as if the pencil was sliding on the page. You could still layer with the colored pencil, but you just didn't get the depth of color that layering got with the other two papers. I was able to blend enough to show some contours in the face, but the paper just won't support as many layers as I would typically use in coloring skin.Where this paper was head and shoulders better was in the color. White is not always white and this one had the brightest white color. So if that is a factor, this one wins hands down.Even though the 80 pound Bristol Vellum jams in my printer about once every 35 pages or so this 80 pound paper never jammed in the 50 plus copies I made using the paper. The paper advertises that it doesn't jam and based on my experiment that is true. The 67 pound paper didn't jam my printer but as I have made only about 20 copies using it, I don't think that is conclusive.If you look at the hair you will see it looks darker in this paper. I used the same 7 pencils in pretty much the same order in coloring the hair (highlights, shadows then overall is generally how I prefer to color hair.) I don't know why here I ended up with a darker look unlike the background which looks lighter, but it must be a function of using only one color in the background and 7 colors in the hair. Perhaps as it doesn't blend as well on this paper the last colors used show up the most. With the jacket where I used two shades of green with a medium grey, I again got vastly different results. (I cant add the 67 pound paper into the comparison as I inadvertently picked up a darker color pencil which obviously resulted in a darker outcome.) The Bristol Vellum paper of the same weight simply ended up darker.From my experiment I was able to conclude that Bristol Vellum paper whether 80 pound or 67 pound has more tooth and so you can do more layers of color. Those papers are better over all if using colored pencil . All of the papers performed reasonably well. My advice to colonists is to try several different weights of paper so as to make an informed decision about what works best for you. Like most things you may find that for your purposes you like something else and the paper you like best is partly personal preference. If you hate a paper you can always use it for regular printing. While I don't know if I would have the patience to repeat this test on other papers I am glad I did it here. Even rushing though the coloring, it was a bit time consuming and I know rushing meant the end product was lacking but I was trying to judge the paper not my skill in the end result. lThat is my excuse and I am sticking to it!) The pencils I used were the Tombow Irojitens, Prismacolor Verithins and Lyra Rembrant. Polycolor. The Lyra pencils were used for the vast majority of the time.