Tow-sports enthusiasts are a group of boaters who don’t give a whit about top speed. But it takes a lot of thrust to push a 6,000-pound boat with 5,000 pounds of ballast—plus the lead ballast that ...

So of course, I hooked up 5,000 pounds of fiberglass walleye boat to see how well the GX performs under strain. During a week of towing boats with my dad, schlepping kids to activities ...