Hatband pattern to be crocheted!

I found it!  The pattern in the Crochet Edgings & Trims book to make a hatband for my grey linen sunhat!  Here is my test of it in the craft cord:

Romanesque arch crochet pattern - future hatband!

It even looks like the pic in the book ... and best of all, the "windows" below the arches are just wide enough to thread a 1/4 inch satin ribbon through.  I'm excited, if you can't tell. LOL  I'll need the excitement to carry me through crocheting 22 inches of these arches, then adding buttonholes.

Oh, it's upside-down in the pic ... I'll have the arches going upwards on the hat.  I'm doing it up in size 10 lavender crochet thread using my 2.75mm/size1 steel hook.  The crochet thread is a smidge thinner than the craft cord, but mainly because it is spun tighter, but I used the same hook on the test piece.

I think I've discovered where the problem is on the curling - my start chain curls and I am not certain why.  Gloria asked if I was crocheting too tightly in chat the other night, and that is possible although I keep seeing about a quarter of free crochet patterns online having a note about the person writing it saying s/he crochets tightly.

I have more pictures of other designs, but right now am in a "drop everything else and do this project" mood, so hatband it is.  I really want to dump the black satin blanket binding test band.  I also need to give the blocking/shaping/starching idea a go soon.