Thanks for all the feedback, I should have clarified that I don’t use my mat for measuring but I do like to be able to see the lines when cutting fabric from the bolt, and lining up for subcutting using my slotted rulers, and the yellow and the grey don’t work for me. I ordered new ones and I hope I like them better. I too have a Quilters Select cutting mat and all their rulers, they are my favorite rulers and mats, but the mats are currently out of stock and have been for some time. I have a huge cutting table and I have 4 cutting mats held down with double sided tape, these are the ones I am replacing.