Peckish

I don't pin. I put the convex curve on the bottom, the concave on top, and I hold the top piece up until it hits the presser foot, easing as I go. They end up at the same point when I'm done. I went through a phase where I sewed a lot of set-in sleeves, and that exercise taught me how to ease in very well. Lol.

Onebyone

I have two different size dies for DP for my Go. They sure are easy to sew together. I have too many things to make the same thing. Acquiring quilting tools over 40 plus years, it is amazing what tools you do have. And I still have fabric I bought that long ago too.