T&T: "Poly" rope confusion

[Ron Rogers]

To add on to Larry's explanation, I would like to point out that the three 
major manufacturers (New England, Yale, and Samson) all make a variety of 
Polyester sheathed braided ropes with a variety of cores. These cores are 
mostly intended to reduce stretch and/or add strength. Although I use New 
England Nylon, braided dock lines, I like Yale's website best as it clearly 
shows each type of  line, its characteristics and intended applications. The 
industrial portion of the website shows even more types of cored line.

Ron Rogers