I need some help in deciding on a rod length I should get. I have test casted the 6wt rod lengths of 9', 9'6' and 10'. I only want to buy one rod at this time. What I need to decide is what length should I get. I fish mainly lakes, rivers and streams in and around the Sierras for trout using dry flies. Most of the places I go to are open so there are no obstructions to deal with. I tend to wade in or fish from shore and on occassion fish from a boat, but this is rare. What length should I get and why?