As a general rule ok but On my river a Sea trout can run you up the pool , down the pool around the rocks . in the sunken tree and through the rapids to the next pool while you are trying to follow in the dark along the bank over the rocks around the bankside bushes and over the fallen trees. It is not a river to wade especially at night. My perception is that talking generally of course on big still waters you just need plenty of backing ,,,I guess everywhere has its own challengingAs a general observation, any fish hooked in a river only has a certain amount of freedom of movement. It can take you up a pool; it can take you down a pool.... Providing you are able to follow it, you can just walk it about until you tire it enough to bring it in. No?
O M W