been using 3 mm dyneema line for 3 years now and it hasn;t failed or chaffed yet.



Trick to lines is to do it right. There are two rules to line which are taking from power kiting.



-1- Almost every knot reduces the line strength by some 40 to 50 %. So you fisherhitches and bolins to reduce the reduction, these two knots have the smallest reduction and a Fishers hitch results in two line running our a shackle so 200 % * 50 % = 100 % again.



-2- Use small shackles to attach the lines to the mast. A simple fishers hitch will be enough to attach the line to the dogbones.



Use also a figure 8 knot tho rest the trapeze handle on.



Advantage of line :



-1- Cheaper and alot simpler to replace.

-2- hangs straigh down and doesn;t slap around in wind or waves even with small diameter bungees attached to them

-3- doesn't rub against the battenpockets as much as wires do this practicallty eliminates batten pocket wear in the mainsail. Repairing these pockets is expensive,



Quite a few crews have been using these for several years now. Don't worry just trust the line. Just make sure you use proper high strength line.



however Consensus is that the standing rigging should still be wires and not lines.



Wouter



Wouter