Does anyone here use a low shank snap-on foot attachment adaptor with their Singer Featherweight and/or 66 machine? If so, does it work well and can you use any type of straight stitch snap-on foot? I have tons of specialty quilting feet from other machines (computerized Brother & Pfaff) and would like to utilize them on my newly acquired Singer 221 & 66 without having to break the bank to buy new feet for them! Would be nice to be able to use what I have already on hand!