The running stitch around the whole quilt sounds like an easy enough thing to do, if it maybe stop the stretching. Going to try today, have to start adding a couple of borders to the quilt I am working on. Thanks for that bit of advice.

I usually do not do this but if I have a concern it will stretch when I add it I will. I do measure across the center and edges and find average. Then find center of border and pin to center of edge etc. It does work!

I'm somewhat of a perfectionist & to help assure the quilt will come out better, I always cut the 2 sides & top & bottom borders the exact same length. I use the 12 1/2" square ruller to make sure my corners are squared when trimming off the extra backing & batting in preparation for binding.

I meant if I have two or three borders I sew them all together first then only have one border to sew on the quilt. It's easier to miter all of the borders that way too.

I'm having a similar problem. I got a QFK kit and put it all together. When I went to sandwich it, I found that one of the borders wasn't cut right. It's narrower in one spot than the others (apparently that strip of fabric was cut crooked) and the way it's sewed on, the non-straight side was stitched to the quilt. So there's waviness. I'm debating whether to rip out the border and turn it around so the straighter side is sewn on but then I'll have to remove part of the top and bottom borders as well. At any rate I'll have to trim down all 4 borders because of this and the quilt won't be the right size but I don't have any of the same fabric and there's not much else I can do.

have had a tottering time with one this morning--------going to use it for a trash can cover due to mess up--------the ladies on live chat really helped me out of mass depression

Have you tried to steam your border? There was a hint in the APQS site about doing this to shrink your borders. They use starch and steam.