I am a sewing machine mechanic and I run into all kinds of problems but these ZZ machines are tough to figure out ! First of all, our ZZ’s are set up with core edge folders and and we run material anywhere from 1/64 to 3/16 thick. Now combined with the binding thats pretty thick! The thicker the material the more the thread flags and skips on the right side. I know that putting pressure on the foot and rising the needle bar along with timing the hook as close to the eye of the needle as possible helps, but there has got to be a better way. I am looking for any ideas I could try.

I have a singer sewing maching and when I use it, it makes big loops of thread on the back the front looks like your doing good?