collady

Have you removed the paper from ray sections? I was going to suggest a glue stick to hold the ray section to the other sections. I also pinned the beginning and the end and placed the wide section on the feed-dogs with the shorter section on the pressure foot side. I found that I didn't need to pin much other that the start and stop.

Krystyna

You're probably already done with it, but I just took a class yesterday. Fold the curved part in half so you know where the center is. Pin right sides together to center of middle spire. Go to the end and do 3 stitches. Needle down and raise foot to ease the piece in line. 3 more stitches - no more. Keep going until you're at the end. It works!

NJ Quilter

Another trick to remember when easing fabric...put the side with the fabric to be eased (i.e., the larger, puckery piece) to the feeddogs. This will also help ease the fabric to the top, flatter, piece.

nativetexan

there might be some tutes on sewing Drunkards Path blocks together which is what the NYB's are. i find the centers of both pieces, crease and match and pin, then take the ends/or sides of each and match. they will be straight with each other, pin. then perhaps a pin in between on the curves too.
then sew. with the pie piece on the top since it has more fabric to ease in as you go along.