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I am pretty sure that Tachyon is the same as Sherrill Tree's Lava climb line. Some major suppliers can have manufacture's make the product with a different look, and put a different name on it. I have 150' Lava double spliced, and love it. And it has not milked a bit. Twisted a little the first couple of uses, but that was it. You should be happy with the Tachyon, if that is what you are looking for.

They are more for rec. My daughter is convinced she is going to learn to climb. I haven't started her yet, but I got her a basic saddle, I am going to get her a line, helmet, biner. If she takes to it good, then I plan on getting her a New Tribe. I have not used one, but they do look comfortable!