I use calcutta 251's strapped on to a 1025, standard for O.P. winters. I load it with standard 15 or Gammy 17, which is a thin diameter line. I've landed some pretty big ones with this combo.

I, however, question even changing reels. My partner uses Curados exclusively, during summer, winter and spring. He puts 15 maxima UG on and it works just fine that way. I'm pretty sure there isn't much more than a 100 yards of line on the spool, but in my experience that's all you need in the river.