I have a bit of a problem with using my Singer 111G155 for reverse
When i start a line of sewing, I stitch 2 or 3 stitches and then slightly lifting the feet move the leather back to the position of the first stitch and continue sewing the line, same at the end of line so both ends have locking stitches
Trouble is sometimes it seems to screw up and i get a double pickup of the bobbin thread and jam's the machine by holding it down to the bobbin
What am i doing wrong, sometimes it works well others it screws up, apart from that its perfect