I find it interesting that similar machines to the Juki TSC-441 heavy duty sewing machines there are variations of how the top thread path to the needle varies. I wonder what are the pro's and cons are??? 1. Juki TSC-441: i) I couldn't find good photo's for the Juki TSC-441so the info is from the Juki instruction manual. The top thread goes through the top tension eyelet and through the tension disc's then down to the lower tensioner disc and then the thread wraps around 1 1/2 times th