You do need to remember when using the rope that it is not solid as a steel cable would be. The rope will compress and could slide in between the rollers. And you would be surprised in the weight difference in the roller verus the hawse. I know I was when I swithed mine out. As for the roller fairlead they are I believe zinc coated and made from steel. Here is a url I found last night while surfing at home. http://www.pirate4x4.com/tech/billavista/PR-fairlead/ it shows what happened to this guys roller while using the syn rope on it. If I happen across any others about rollers and rope I'll let you guys know.

 

Depending on the fiber that is used in the rope you might get a huge whip or none. The more stretch in the rope the more energy that is stored in the rope. Think of bungie cords on one end and solid rod on the other end of the spectrum. Each will stretch but the rod will stretch less before it breaks. The high density fibers used in fiber winch lines have very little stretch. They are expensive and more delicate than metal fiber ropes.

Many of the high density fiber ropes are pretty easy to splice. It would pay to copy the splicing instructions, reduce them and laminate the instructions. Stash them on your quad with a fid in case you need to fix a rope. Many of the fibers are too slippery for most knots. I'll bet dollars to donuts that there are very few readers here that know how to tie a triple fisherman's hitch. If not, google it and know how to tie it.