Hi Coot
Actually the feathers I'm referring to are strung schlappen feathers. They are completely different from marabou in every way especially under water. Below is a link that shows a picture of a strung schlappen feather.
http://www.flyfishusa.com/fly-tying/strung-hackle-sch.htm

Mark
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First Bite Jigs

Nobody makes a tougher jig...PERIOD!