Originally Posted by
Nammie to 7
I use 2.0 to piece quilts, 2.5 for sewing garments, 5.0 for basting, and 1.8 for paper piecing.
The same for me, I found my piecing looked better and was more secure when I switched from 2.5 to 2.0. Something I heard from a couple of very experienced quilters on the Quilt Show website.