Originally Posted by Digger84
It is safer but not a weight thing it is a stored energy thing
The synthetic does not stretch the wire acts as a spring storing energy that is released when it breaks that stored energy is what turns the snapped wire rope deadly
This is correct. I know of a case where a nylon strap was being used by one commercial vehicle to pull out another one and the hook on the frame of the vehicle being pulled out broke off. This hook was identical to the ones on a stock TJ bumper but much larger. The bolts pulled through the frame and the stretched nylon strap propelled the hook right through the ribcage of a worker standing 100 feet away. Obviously he is no longer with us.
I don't care if you use steel or synthetic, you need to put something over the line to dampen that energy in the event that "something" goes wrong, which is not necessarily just a breaking line.