I also need to add, from my sailboat racing days, lines such as Dyneema, Sprecta, and other High Modulus Polyethelenes are very strong but can be quite slippery and do not hold knots very well. Knot handling is one of the reasons I prefer Vectran. YMMV
Edit: My comment above about knot handling of Dyneema is strictly based on lines constructed of single core Dyneema. Lines such as Spyderline have a center core of Dyneema with a Polyester outer braid. The polyester does help knot handling a little bit better than pure Dyneema.
Last edited by Tobit; 01-17-2008 at 13:06..