Thanks for the information. I have a 55 lb thrust 12v terrova on a Ranger Cherokee 175. I pulled cranks yesterday at 1.8 mph for the first time into a light wind with the outboard trimmed up. My terrova was running on about 8 or 9 most of the time to keep that pace. I am running 2 12v batteries in parallel, but I don't see them holding up long at those settings. How much depth/action will I lose by running at 1.2 or 1.3? I will be using mostly Bandit 300 series and Norman Deep Little N cranks. Thanks