The Upstream rod series has a super-light, ultra sensitive feel. There are only four models: one 2-weight, two 3-weights, and an 8'-8" 4-weight that actually weighs an astounding 1.72 ounces (which is what I am fishing). They're graphite, but not the common high-modulus action. They feel more like fiberglass, but with a little bit more oomph. What that ultimately translates to is excellent line control, and for my money, line control is the name of the game, especially when you're pitching dry flies at tight targets on small water.