i have sewed all my life ..in order of learning ...on grammas treadle, her fw and then a necchi i bought in early 80’s. that one died of old age and years of hard heavy use. i bought a used pfaff...and all of a sudden i am understanding all these references to "set at 1.2" etc. i have always just played w stitch length til i got about 11 or 12 stitches to the inch. still do even on my janome 1600 PQ & the pfaff. and when i help friends do a little stitch removing at our quilt group meets, i now understand why their stitches are tiny short little things that pucker their fabric and can't be removed w/o running risk of tearing the fabric. this was an interesting thread, suesew, thanks for starting it. i have learned much!