ExploringNH
Explorer
The Warn Zeon has an external brake, to the drum, and is designed to specifically work well with synthetic line. Warn only offers the synthetic line up to 10K lbs, but a number of other winch line suppliers make great products for he 12K lb Zeon.
The Zeon 12k can not take synthetic, any synthetic, due to the drum design. Call Warn and ask. I did. Sure you can put the line on, but it's not designed for it and under a hard pull with limited layers on the drum... People put hockey pucks between body mounts for a cheap body lift. It works. It isn't right. Same deal here. It can work for a while but eventually it will see failure.
Like I said before. I would have a 12k Zeon platinum on my truck today if it could take synthetic.
Maybe you don't care and are willing to take the risk. I personally want to be able to use 100% of my winch's capacity if needed.