I have not pressed it and the third round does frill a bit so that's why there is a slight overlap at one spot. I just squashed it under the lid of my scanner. I think the frilling will resolve itself with the fourth round anyway.
As it is the spooky season, I tatted Marty's bat to decorate my mat.
I went a tad wrong on the wings
(missed a couple of stitches in the centre segment)
but it's still looking pretty good.