This is a picture of my jibsheet after the cover failed this weekend. The yarn ends were effectively melted. This line isn't even two years old. It's SAMSON Ultra-Tech. I am disappointed.
I absolutely LOVE Samson's lines. I have Amsteel everywhere. Except for this jibsheet, lines and halyards are in Warpspeed which I've used for years.
My lesson: avoid UltraTech.