>The only thing I use dacron for is [...] sleeving Spectra..
that was sleeved in Dacron. The lines were quite new and they broke on
the knot inside the sleeving at much less than 275lb. I would guess that
they broke at about 50lb. I strongly suspect that the dacron sleeving
abraided the Spectra, leading to the breakage at such a low strain. I am
now using softer, less abrasive and thicker sleeving (I'm not sure what it
is, it is just the thickest line that my kite store has, with the centre
A while ago, I reported that I once dropped my 6 flexies on a stunt
kite flying on Dacron line. The flexies were bridled with 4mm diameter
rope (from a boat shop). We didn't fight, the stack just fell on the line
and the 80lb dacron slid to the bridle point and then cut through the rope
till it was stopped by the metal O-ring.