I don't know what make "quality tungsten," maybe it having inserts? I buy 99% of my tungsten from anglers pro tackle. I don't believe it has inserts (at least the dirt cheap tungsten) buy I retie after every fish, and I check my line for frays frequently, I also peg it most of the time. Don't know if that helps or hurts? Im not a pro, but I fish every weekend, and I'm perfectly happy with the tungsten from Anglers Pro Tackle.