Boat trailers with too little tongue weight tend to do what?

When a boat trailer has too little tongue weight, it creates instability while being towed, which can lead to a fishtailing effect. This is primarily due to the fact that an improper weight distribution means that the trailer is not securely stabilized behind the towing vehicle. When the tongue weight is insufficient, the rear end of the towing vehicle may lift slightly, causing the trailer to sway from side to side. This swaying motion can escalate rapidly, leading to a dangerous situation where the trailer "fish-tails" or swerves unpredictably.

Maintaining proper tongue weight is essential for ensuring safe towing, as it keeps the trailer aligned and steady behind the vehicle. A correctly balanced trailer, with appropriate tongue weight, enables smooth and safe driving, particularly around turns and during sudden maneuvers.