I have been tempted to use a 10 footer and now, by God, I am going to do just that! I have often been tempted to take my 9 footer and tie on a 7 1/2 foot 5x leader on the tip top and not even take fly line. I am sure that I would be able to reach 90-95% of the areas that I normally fish. As I am sure you are well aware, it's about stealth and fly placement. Fly line makes it to tempting to reach out too far on these mountain streams!