My camper trailer is pretty light, about 9300 GCVW. I have aired the rear tires up to sidewall max to tow it a few times. The handling with that trailer does not improve much, if any. And most trips we set up camp and use the pickup to run around. With no trailer, and hard tires I notice stopping and quick lane changes, she does not track as well. This tells me, if I had to make a sudden stop, or swerve with the trailer, I will be better off with door post pressure.
Now I do run the steers about 10% below post when in town, but at post if going to drive more than 20 minutes at a time at speed.