My apologies to all. I made a bad assumption and am very embarrassed. Spectra is actually a polyethylene, not an aramid like kevlar. It is roughly twice the strength of kevlar (by weight), Kevlar is roughly 5 times the strength of steel, by weight<br>CMC sells a 5.6mm GUIDE line, but their ESCAPE line is 7.4 mm. both are kevlar. I SUSPECT that Kevlar is the better choice for those products due to heat resistance, which the polyethylene Spectra MAY not have.<br>traditional escape lines have been made of 8mm nylon kernmantle.<br>Any thoughts anyone?<br>thanks<br>JB<br><br><br>Expect poison with the standing water.<br> -William Blake