I use Stampin Up cardstock almost exclusively for my card bases. I like the weight of it and with all the colors they offer I can usually find a color to match any of the paper I am using. I also like to see the colors in Make The Cut when I am designing a card. Even if I am not cutting anything I still design in MTC so I can get the measurements right the first time and not have to guess at waste paper.
COLOR COP and I did download it and I am sure I will be using it a lot in the future as well. If you decide to download make sure you look in the left hand side menu and click that download button. If you do the one on the right it is going to give you some weird program you likely don't want.
Maybe I need to explain how I use the colors a little better. I often use the MY CREATE INK website to find coordinating colors for cards and now I can get my group of colors figured out there and then open this file and slide the colors I want to use in a group to the side and copy and paste those blocks to a new project. Once that is done I can either resize my blocks how I need them if I am using a polygon shape or I can click on it and have the color menu come up, add to custom color and then go back and change the color of the image I am wanting to use. I hope that makes sense because it does in my head...but we all know my head can be a scary place sometimes.
I am offering the file in SVG as well because a dear friend of mine, whose name rhymes with cinnamon, wished she had it in SVG and sometimes I am nice to my dear friends who don't use MTC and convert files. Since there are so many Stampin Up users out there I thought I would take the time to convert this one.
Download MTC file: Stampin Up Color Blocks
Download SVG file: Stampin Up Color Blocks
I still have 3 more giftbags to show you guys but wanted to interrupt and share this with you first. After the giftbags I have some mini-albums I will be posting.