I would like to get some input regarding the timing of zig zag machines (Singer 143W3 in particular). In the past I have been told that to set the timing the zig zag should be set to its widest stitch, and the hook timed to the needle based on a specified rise on the left stroke. I have also heard that the needle should be set in its center position and timed from there. So....what say the gurus here??