I have a Mastery GPX WF-6F in willow that has been only lawn cast and includes original box. Bought this line to try overlining one of my rods and it was just too much. I would either like to sell it outright for $40 or trade it for a 5wt GPX in equal condition. Of course, I would be willing to toss in a few bucks extra if you have a brand new line that you would like to trade.