I was in Chilean Patagonia for 3 weeks this spring just as their fishing season was winding down. I met a couple guides and flew back sitting next to Jim Teeny. I learned a bunch about that fishery and everyone down there seemed to be in agreement that the sea-run Browns were the main thing rather than the rainbows. Those sea-run browns get HUGE! A friend has sent me some pictures from this season and they are getting brownies over 20# all the time.
And I thought the browns I get in NZ each year were big...