I just got Shimano 9' Tiralejo spinning rod (TRS-90MH2). Line weight is 15-30lb (mono) and 20-65 lbs (braided line), and Lure weight is 1-3 oz. The rod weight is only 14.5 oz. This rod is definitely too light for big tuna, but I think it handles tuna upto 100 lbs if you treat the rod gently. I purchased this rod just for bluefin tuna popping on the Stellwagen Bank and Cape Cod Bay where you have to cast very light and small poppers in 1 - 3 oz range. I made a decision to buy this rod after I used the Shimano's 10' Tiralejo to land a few yft on the Gulf of Mexico trip and I heard of Capt. Terry of the Ridtide's success with St Croix's 7' Premier Saltwater rod rated 20-40 lbs. He landed over 50 bluefin tuna on the rods this year alone. OTI (360tackle.com) introduced new 7' tuna popping rod recently, but I can not comment on the rod as I didn't see it yet. If money is not an issue, I highly recommend to buy Japanese popping rods. But high price tag of over $600 is not for everyone. I ordered two piece St Croix bank( PM70HF2) rated upto 65 lbs for popping tuna. I think this blank can handle tuna in 100 lbs range.