When Pulling Cranks I use an Engine Mounted Minn Kota EM up to 1.7 mph (I run 3 big Optimas, so I can troll all day at that top speed). If I need to Pull faster - I use an ETEC 15 horse kicker - up to 3 mph and if I know I am going to be pulling mostly over 2.2 mph - I just use the big 250HO. Pushing cranks I will use the Terrova and maybe "supplement" with the kicker if it is windy. The only time I slow down is for a big fish (Cat, Sheep, etc) and if I snag - I will break it off and keep going - unless it is truly a hot-running-hard-to-find bait. For a plug knocker - I'll use old sparkplugs and bend the gap closed - sliding it down the line and jigging it until it gets the lure free.