Rico (et al): Are we talking about poor line or poor fishing technique? If you don't know how to fish, go to Safeway. <img src=icon_smile_big.gif border=0 align=middle> ...or use downrigger line on your reel. <img src=icon_smile_cool.gif border=0 align=middle>
I use 30# test on both mainlines and the leaders. I get one big spool of the good stuff (Maxima), and use it for almost everything: that way I'm certain about what strength line is on what: everything is 30. Personally, this has worked great, but I may move to 40# on leaders for the really big fish with really big sharp teeth. Have you ever retrieved your line to find a leader with nothing on the end?
Last season I did have one problem when I passed the rod to my dad. He brought a very big spring (30+ and his biggest to date is half that) right to the boat. About three feet away from my waiting net, the lunker gave one last gasp and went striaght down. But while my dad's eye's grew wider at the sight of the approaching fish, his grip on the reel reached maximum strength. Well, so much for that fish. <img src=icon_smile_sad.gif border=0 align=middle> Wam! The rod smacked the gunnel and the fish was gone.
I'm sure this sort of thing happens all the time with guides, but I don't think there's a moral to the story. Heavier line? Maybe. Are you going to get heavier rods too? In the fall it's not uncommon for guys in passing boats to show me their broken rods when I ask how the fishing is going. Maybe they use heavy line and bring extra rods?
For the record, my dad's unceremonious catch and release was accomplished with a broken leader, not a broken rod. And he did manage to catch a teenager a short while later.
FS: Get a life.
Remember, it's called "fishing," not "catching."