Why is checking how weight is distributed across doubles or triples especially important?

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1. Only the lead trailer's load matters for handling, since the rear trailers are assumed to follow safely no matter how they are loaded
2. An unevenly loaded trailer, especially a rear one, can make the whole combination harder to control and more likely to tip
3. Even loading is only a concern for tank vehicles
4. Weight distribution only affects fuel economy

Correct!

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