I am considering buying a 3 weight rod to use on the Kern River, I read a lot of posts from locals that are switching to this lighter outfit, but I wonder if they are just being trendy because in most of there fly reccomendations they usually are talking about 14, 16 and 18"s which seem slightly big for a 3 weight, I am a beginner so maybe I am misunderstanding what the object is and why they want to switch to a 7 foot #3 to work a river that is over 50 feet wide in most places, I would appreciate any point of view

Thanks Nav63
Phelan, Ca