I think part of the being scared, at least for me, is after you put all the work into getting it pieced and our pleased with it, you don't want to take the chance on chaning the looks to the point of you don't like it. Messed up. I've only done 1 quilt and a couple of wall hangings and that's how I felt. Next I'm doing a quilt as you go or scrappy so, then I can see what it will look like sooner, before all the piecing.