I making that quilt right now too! I've been admiring it on Bonnie Hunter's website for quite a while. I joined the pinwheel a day challenge as the boost I needed to make it. I put all of the blocks together and added one narrow border this weekend, then a wider pieced border. I really like your pieced border. It was a fun quilt to put together wasn't it? I was 1/4 of the way through putting the blocks together when it dawned on me that I could "fan out" the center of the 16 patch, same as the pinwheels, so that the seams would nest together. After that revelation everything seemed to go smoother and lay flatter. Congrats on finishing yours, I'm aiming for the end of this month to complete mine.