try a german brown rapala, or silver that looks like a cutthroat, i have caught them on the perch. Go with a 7 or a 9 for size, the sinking ones too, by the way i am gonna be back in a couple months so be prepared for competition. Ha ha Good luck the south fork is awesome to float, but there is alot of private land that you cant get on that has some awesome holes. Hit me up in a couple months and we can plan a fishing trip, i also wanna go catch me my first steelhead this year. Good luck all, memorial day weekend is gonna find me fishing the arkansas river here in colorado never fished here but i gotta try before i get out the military.