Trolling up any fish that has taken the lure cleanly in his gob is fair game in any waters. Having said that tho, I guess it would be a bad decision to turn up to an area where it is a lure throwers heaven and troll up and down that piece of structure.
I generally will troll a lure heading to an area i want to spin and if i get a few fish along the way all is good, god knows ive spun the hell outa perfect waters without a touch a thousand times too.
Some species are best targetted by trolling too even in the pine river. Try trolling around a 3" shallow diver dead slowly thru the bigger holes above the bridge at night for a few big tailor for example. You can try spinning all night for next to no result or try floating out baits either under floats or without lead for minimal results of bigger tailor, but drag one lure around really slowly and you will get results.
Jack.