"I would have to say when i first took it out of the package, i was a bit skeptical, because it was a little thinner and more flexible than i was predicting. But, after the first couple minutes of use i learned numerous was to use these surprising qualities to my advantage. I am able to plot out circles on curves and very small radius's, and the thinness of the template allows me to use the finer lead (i use no larger than .5mm lead mechanical pencils) so that i am able to get the most accurate measurements possible. I really like the fact that the "step up" in sizes is very close, allowing me more accurate choices."