I'm using the Aurafil thread and still having some tension problems.
The tread jumps around so much coming out of the tension discs on it's way up to the arm and then down to the needle.
I've seen Sharon Schambers video and she adds several thread guides (made from fishing pole guides) to the side of her machine just so the thread does not bounce around so much. That's my next mission.
I'm going to use some non-permanent silly-putty like molding clay to stick them on.
I'll let you know!