I like the synthetic line I have it on my Jeep Wrangler it works fine and if it ever breaks its not going to snap back and damage my Jeep or kill me which is a bonus. I have the smitty built 12,000lb grey synthetic line on my Warn Powerplant HD 12,000. I just couldn't put blue line on my silver Jeep like some of the other companies make. No you really shouldnt use rollers but I know Daystar makes polyurthane rollers for roller fairleads I dont know how well they work. I use the smooth aluminum fairlead from Smittybuilt. The benifits of synthetic are great, no metal splinters in your hands, its lighter, easyly workable, safer, it like I said b4 it floats and its just as strong or more than steel line.