Please choose the correct ending to complete the given sentence: Cars & Other Vehicles: [header] How to load a powerboat on a trailer [title] Practice backing the trailer. [step] Backing boat trailers is essential to the powerboat loading process. The biggest key is to go slowly, which can be difficult when many other boaters are waiting to use the ramp.

Ending1: For this reason, it makes sense to practice somewhere else. Take your trailer (with or without the boat) to an empty parking lot and practice backing until you are comfortable. Ending2: This can take a lot of energy to do so, so practice backing the trailer before a crew member comes to it to take it on. Using the deep ramp on a trailer can be hard and can often have the kayak suck you into false knots. Ending3: This is so speed will decrease as you anticipate the weight of the trailer. The key is to use this perception when loading your boat, as you will want to gauge your performance before you will load it. Ending4: With a pro engine, you can turn the trailer around. Hopefully the trailer will move with the other crew.

Answer format: ending1/ending2/ending3/ending4