Amen, Chewy Dog!
I've heard the argument that light weight rods kill big fish...but IMHO its not true. fishermen kill big fish when they try too hard to land them. If the fish is geting too tired, break him off. It'll only cost you a fly. The weak part of the rod is straight as an arrow when playing a big fish...the fish is being fought on the tough part near the grip!

Ol' Bill