If you have a 100-70lb thrust trolling motor and set that thing on high you are moving just as fast as you would with a kicker motor or idling. Same function as trolling if a person has thrown a bait behind the boat and is holding it over the side with their foot on the trolling motor. However, using the wind is different, guys up north use a controlled drift to fish they will either motor over a spot drop the trolling motor and let the wind blow them across the spot they then use the trolling motor to try and stay on the spot as long as they can to stay in position controlling their drift, otherwise known as dragging. Sometimes that is the only way to fish if the conditions are extreame and you don't have protected pockets to fish in.