Originally Posted by
Scissor Queen
The in between the seam method can stretch your pieces if you're not really careful, plus you end up with a lot more threads to pick out since it cuts thread on both sides.
Fabric stretching is the problem I have encountered with the "between the seams" method. I have better luck with the first method--just keeping the seam flat and cutting every 3rd stitch, then just pulling the two fabric pieces gently apart.