I can tell you this...I have a Motor Guide on my pontoon with 5 speeds. On the very lowest speed its will run about 1.0 to 1.2 mph. That is a little to fast for me, with the variable you can control the speed and keep it down to .5 or less. I just bought a Minn Kota Power Drive...hadn't had time to put it on yet...but that was my reasons.