I can be a dummy at times. About 2 or 3 weeks ago, I had a customer with a set for a OM606 with "Monarks". 5 out of 6 had really sticky pintles so he was better off going with his original, French made nozzles. There was something wrong with his nozzles. I have seen unusual markings on the side of so-called Monarks. If you have 3 or 4 lines //// (horrible representation so my bad) which I assume is supposed to represent spraying, I think those are Chinese knockoffs but are being passed off as Monarks. I see those on Alibaba now, and could have gotten something really similar for around .50 or .60 cents a nozzle. I forgot the details but they were super cheap. If you have a minutes, can you shoot me a picture of your new Monarks?