Artum
This is a quote from a trailer web site. It explains the importance of the right hitch and why too much hitch will not function properly.
The TW rating is the most important factor in determining which size weight-distribution system you should use. If the bars of the system you choose are rated too high for your setup, they will create a rigid ride, which can result in a bouncing trailer. If, on the other hand, the bars are not rated high enough, the system will be unable to properly distribute the weight, rendering it virtually useless.
Here's an example:
If you have a trailer that has a TW of 700 lbs, and your vehicle has 100 lbs of cargo in the trunk, then your overall, weight-distribution TW is 800 lbs. Choosing a weight-distribution system with a 1,500-lb TW rating may lead to erratic performance because it is rated too high. On the other hand, if you choose a system rated too low, say at 500 lbs, the system would be ineffective. Choose a weight-distribution system with a TW rating that is closest to your towing setup's TW to ensure the best performance.
2014 Ram 1500 Crew Cab, 5'7"box. 395 HP 5.7 Hemi, 3.92 gear, 8 speed auto. 26 foot Heartland North Trail Caliber travel trailer.