Al, I do love the No.6 and have more experience with them than most. It irks me not being able to get a range of needles And yes you are right, the free arm has considerable advantages over the Pearson arm set up. I really like the way a Lock stitch machine sews and the way the stitches look top and bottom. I was wondering how functional or versatile the convex arm or bottom arm on a lockstitch machine is.
T.