I just purchased a Singer 112W double needle machine to use mainly for stitching canvas and occasionally lightweight leather. It came with needles spaced 3/8" apart. I would prefer spacing closer to 1/4" or 3/16 for the type of work I do. I've found different ones on eBay, but they all seem fairly generic. They all specify that they are for light use as well. Are there any other sources for quality gauge sets? Thanks in advance!