Big Fat Mama Chartreuse #2/0. When it comes to getting the fat big lazy pigs off the bottom and smacking top, this is the fly. When you need to make noise with lots of flash and piss them off. This is big fly big rod ammo so do not try and cast this with a sissy 5 weight, you will need an 8 weight at a min. You do not need to move the line or rod much to get this fly to do its thing, just a slight twitch in the dark on a quiet evening, just watch the local beavers, they will try and hump it.