I use Silver Thread or Trilene XL in 6# for walleye and for ice fishing and XT or Berkley Big Game in 12 - 15 for carp. Canadian Tire has spools of Big Game 15# ....900yds for $12 Can. What's that in U.S.$ Free?
I am also impressed so far with the Spiderwire Super Mono. I tried it on a friends rod last week and liked what I saw. Good handling, castibility and strength, I will be trying it on one of my own rods soon to research further.