for hopetoquilt: there are a number of comments as to ripping or unsewing. It would be nice to be proficient and attentive to our quilting that w never had to do it. But we all know that that is not going to happen any time soon! You are rightly concerned about holes in your fabric. Some of the methods mentioned in this thread require pulling two layers apart and cutting the exposed threads. Care must be taken so that stretching the pieces does not happen. My preferred method is to use the tip of my seam ripper to lift and cut every five or six stitches on one side of the seam and then pull the long thread on the opposite side of the piece. No stretching involved. The bits of thread can be removed with tape or roller easily. I try to always take out my mistakes before I put my work away for the day so I can come back to a 'move forward' situation.