I got the 3/8 line rated at 17,500lbs.
Since this is thicker that the 5/16 line 85' is all you can fit on the XD 9000.
My reason was I wanted the strongest stuff I could get.
I might be out with other trucks that are heavier than the X or some recoveries might be in mud and with suction forces can get pretty high.
I also got a 50' extension.
This gives me 135' feet of reach and more options for pulling.
The downside is the stuff is expensive.
For the extension I got another hook at the end.
This makes it dead easy to attach the extension (but costs more).
CD - has just ordered 100' of the 5/16 rated at 11,700lbs
He was going to try 125' but after talking to the guy at MasterPull he went with 100'