My ironing board isn't 16" wide so I can't block the whole block on it.
I'll try pressing the last seams open, see if that helps. I like to press the rows to the sides so they seams nest, but you are right it doesn't matter for the row seams.
The stripstick looks interesting, I might try that if the other tips don't work but I was hoping to not buy any gadgets.
Thanks all and keep the tips coming!