First, welcome to the direct drive world of boats. You made an excellent choice.
1. I am a Nautique guy, but it sounds like the pump is emptying the bilge or the ballast tanks. 2. The torque you are feeling is the boat set up for improved tracking in the ski course..it is intentional.
3. Not certain on that one.
4. Your boat is equipped with Zero Off speed control. In "practice mode" you can adjust speed in .1 mph increments. In "tournament mode" the speeds are preset at tournament speed settings 30, 32, 34, 36 (slower speeds also)