This is the best scissor I have used on a rag quilt.  The short stout blade and the spring action definitely improves the cutting capability.  Only problem I had was my own fault - judging the cut as to how close I could come to the seam without actually cutting it. The top of the cut looked good but the bottom blade would sever the thread.  I was trying to get a little too close on the top of the cut.  I few couple of millimeters further from the thread would have been fine.