Just downloaded all her latest videos on these disappearing blocks. Am in the process of making the disappearing hourglass. My one question is since these blocks have so many seams is..............do you press the seams open, one direction or the other so as to nest the seams, twirl the seams in the middle on certain portions of the quilt or what? I nested the 1st couple of seams but the last one I had to press open and even then it didn't want to stay open for me. Just want to know how others are handling the bulky seams?