One of several fly-line revelations at last month's Fly Fishing Retailer, RIO Product's new XS (Extreme Slickness) technology is a serious advance in fly-line engineering that should deliver extra distance for anglers seeking to throw the long line. The XS coating is actually a blend of two new polymer ingredients that RIO says are radically different from anything used before in a fly line. XS will be available in a number of lines, including its popular series of specialty saltwater lines. www.rioproducts.com