I rarely if every pin seams including binding. I find if I sew slowly as I match edges and pay attention to not stretching fabric everything works out. It probably takes as long as taking the time to pin then racing through the stitching. I think I was probably taught this way as I usually research any educational material before starting anything new. (It's been so long I really don't remember). Anyway, this works for me and I've been told my piecing is really good so I'll keep doing it this way.