Jeff and I have been using our Scott Switch Rods for bass fishing in the the rivers for many years. Here are a few of the great angling features the switch rods help us with. If I am wading a river where there is a solid line of trees behind me that would prevent a regular back cast with my regular, single hand, smallmouth bass rod, the switch rod easily lets me roll out long casts.
When I am fishing nymphs and streamers across fast currents the extra length of my switch rod easily helps me reach high in order to negate the fast currents before me that would rob me of depth. Also in similar situations I can use long controlled mends in order to swim my flies deeply.
Making long casts is easy with a switch rod so I can fish poppers along the far shaded banks when the river before me is too deep to wade.