Check out the spey central pages on Rio's site (http://www.rioproducts.com/spey-central.html) there are a number of really good articles on casting and line selection and quite a few youtube videos.

For me at least, a lot of the concepts were/are hard to visualize and seeing them in action really helps. Rio also makes a video called modern spey casting which is very good.

(http://www.sexyloops.com/tackle/modernspeycasting.shtml)

Good luck.
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I am still not a cop.

EZ Thread Yarn Balls

"I don't care how you catch them, as long as you treat them well and with respect." Lani Waller in "A Steelheader's Way."