I've been using 500 kg breakstrength 3 mm dyneema ever since 1998. In that time I've only made two sets. I sold my other boat with those trap lines after 3 years and my current boat has them for 4 years now. I inspected them right before the F16 Global Challenge two weeks ago and they are still fine. I just need to stitch the thimble up again (this protects to wire at the hound fitting), but that is all. I'm sure I'm going to get a few more years of service out of them.

Personally I only trust Marlow 3 mm 500 kg dyneema line. Friends of mine experimented with spectra and imitation dyneema and it failed on them after one season. I guess it really pays to find quality line.

Other then that I high recommend synthetic trap wires to anyone.

I think it is also a safety issue. I can cut my trap wire with my knife in case of an emergency.

Wouter