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For a smaller total and deeper water (i.e. anchoring for Halibut), I've been thinking about a 3-part system. Anchor, chain, 50-100 ft or so regular rode, and then a lot of finer (and lighter) but very strong Spectra. I've been very impressed with using Spectra in runners (the sling between the protection "piece" and the rope) for rockclimbing, as it increases strength and reduces overall weight of what you carry. The stretch and energy absorption of a fall is absorbed by the climbing rope, not the runners, and Spectra is the primo material for them now. Obviously, fine, slick, Spectra won't feed into a regular puller as the chain and regular rode will, but with a drum system that won't matter. I'm also not crazy about the gunk going into my bow cabin. For regular anchoring, you won't even get to the Spectra. This stuff is amazingly strong, but doesn't stretch, so Spectra direct to chain would be too jerky, and maybe put too much stress on the anchoring system. Anyone tried this or seen it? Also, I was able to splice the regular rode to the chain nicely, but I'm not sure how to approach Spectra. Actually a knot or two probably wouldn't snag the reel system too much. Any advice or experience?