oh, I am still using all my Omigrid rulers....both the old yellow lined ones and the newer green ones.....I just have way to much invested in them to start all over. I have heard the most important thing is to be consistent in what rulers you are using as some manufacturers may have a slightly different approach as to where exactly they place their measuring lines. I don't know that I have found that much of a difference in the other brands I have a ruler or two of. If I had to start all over again, Omigrid would still be in the running but there are many fine rulers out there. I have just gotten some Angela Walters/creative grid rulers for my ruler work, and I like them to as they have more markings on them for placement than some of the other long-arm rulers I have.