Ah sweet I use 40lb mono from izor honestly it's what ever with mono I've never really had a big problem. I know izor stretches alot but with the iron I kind of like it that way. For the 80lb I'd just go switch around leaders depending on the fishing I'd go anywhere from 55lb to 80 if your after something toothy. It all depends I tend to down size my leaders depending on the fishing if it's slow go lite if it's wide open go heavy