not on mainsheet ... was looking at the Fuzzy Wuzzy attachment to the boom referred to in earlier post ... looks like spectra or dyneema? 4x around with two block attachment points ... and another similar lash for the clew. I'm betting its dyneema.
Bill pointed out this summer to me that the velcro strap we both use for the clew is wrapped around 3x. and that is just to keep the clew tucked a bit closer to the boom.
