I have been purchasing from AllStitch for at least 10 years. This is where I get all my stabilizers too. Wonderful company to deal with. Madeira is a high quality German thread. Didn't post to your original query, but I would get one or two spools of different brands, Madeira, Floriani, Sulky, Marathon etc. and see how your machine likes them. Some machines are fussy, others will sew with anything.