yes, an 8wt on those rivers sure would be overkillI would stick with a good 6 weight rod/reel combo for the thrill and to feel the fish. Bulls on an 8 weight always felt like pulling in a wet rag to me. My experience is on the Skagit, Stillaguamish, Snohomish systems mainly (fresh & salt).
I tend to lean in the direction of heavier rods than might seem appropriate for these reason as well (3 fly rigs though). Also, I like enough stick to get 'em all in healthy and strong so I can release them to be caught again.I don’t think I’d ever go lower than an 8wt for two reasons: the size of flies I throw, and I like to fish around structure so I want to be able to rail on them before they try to get back under cover.
also, the bulls in the river I fish regularly often are above the 30” mark . With that being said, I find the mid to high 20s fight harder.I tend to lean in the direction of heavier rods than might seem appropriate for these reason as well (3 fly rigs though). Also, I like enough stick to get 'em all in healthy and strong so I can release them to be caught again.
I'd say the coastal bulls are the outliers not the Metolius. The diet and life histories of the bull trout you have experience with are pretty unique.Bull trout are great at conserving energy, even when hooked. The Metolius apparently has a different breed of kokanee super charged chars.
I agree I could have ethically fought and landed every single Sky & Skagit bull I've ever caught in the last 20 years with my 5wt. No problem actually.I'm sure that my favorite rod for bull trout (north Puget Sound rivers) will be an outliner. For the last 30 years my go to rod has been a 9.5-foot sage RPL+ in a 5 weight. The only exception is when I expect to be catch mostly sub-adult fish then I step down to a 8.5-foot sage SP 5 weight.
Those "lighter" rods provide full enjoyment of the more typical sized bulls yet with experience has proven to be more than adequate for the vast majority of the larger bulls or other salmonids encounter. I should add that I do not use weighted flies.
That does not mean that I don't occasionally get "schooled" by a fish. See the last story of Chapter 5 of the bull trout articles for an encounter where I had virtually no control.
Curt
Matt makes an excellent point, here in the north Sound most of the bulls we are catching are kelts that are just dropping down from spawning having lost as much as 30 to 40% of their body weight. Given the same fish a chance to recover and fatten up on abundant salmon flesh and eggs they become a different critter and those same fish after a month or two in the salt even more so.I have caught bull trout that came in like wet rags and I have hooked some that fight like demons. It just depends. A post spawn skinny bull on a poor salmon year caught on an 8 weight in 34* water is probably going to be unimpressive to a seasoned angler. But then again, one I hooked recently made me say "damn!" out loud on the take; the fish friggin' slammed the fly!