Ghoney, don’t fret and please keep sewing. If I’m not mistaken, Alex said in the last video (I think is was) that she has been able to ease in up to 1/2” by having the larger piece next to the feed dogs. If you squared up to 6”, then you have 1/2” to make up when sewing them to their neighbor blocks. I would just space those 5 around in the quilt top, ease them in, and dare anyone to find them!