I have a Minn Kota Power drive mounted on the front of my Alumacrft 165 competitor, simply aim the trolling motor straight ahead and bring the foot pedal back to me at the drivers seat. I set the foot pedal on the gunnel, flip the switch to constant on, and only adjust the sped control. Then with the engine off, I use the steering wheel to steer the outboard the boat where I want to go. You can troll like that a what ever speed you want to go.
No drift sock needed.