Have you talked to the people in the fly tying area of the store about what you use? When I worked in retail we almost always ordered that kind low price item if someone asked about it. The boss figured if one person wanted it badly enough to ask there was probably enough local market for it to try it. It may take a while before the next order comes in though. If it's a matter of being sold out all of the time ask someone to call you when it comes in.