Risk of Putting Slightly More Weight Back To Front Axle

On my setup I have increased the weight on my front axle by about 75 lbs more than unloaded. This gives me the best towing performance. I think the key here is if you do this is to not unload the rear axle, and have the rear axle still loaded by at least (if not more) the same amount as the front. In my case I have about 200 lbs on the rear, 75 on the front.

OP, I would never do this and here is why:

Trucks are notoriously unbalanced. That is why you see people putting sand bags or heavy plates in their beds. It's to get a better weight bias. The closer you get to 50/50 the better a vehicle will handle the better is will brake............the better it will do everything.

The new trucks are better. That's why you see the engines of new trucks stuffed up under the dash. OEM is trying to get close to a 50/50 weight bias.

Also; when you panic brake all the energy (weight) will try to go to the front bumper of the TV. When this happens it will squash the front suspension of the TV. The back of the TV will unload and try to lift the tongue of the trailer. The higher the front of the trailer and tongue the more successful it will be. This is a bad thing. Your trailer will then try to jack knife. For the best handling TV and braking combo you need to have your trailer an inch or two lower in the front and have a 50/50 weight bias on your TV when loaded.

The goal is when under panic braking is to get the hitch to line up with the tongue of the trailer. Not lift the back of the TV or squash it. With this you will get the best handling and braking TV/trailer combo.

In this Equalizer video they talk about starting with 5 washers and later adding additional ones.

Adding Washers

I wouldn't worry about it. Better to have 50 - 100 lbs more than less as your experience in handling shows.

A 300 pound guy in the passenger seat would add more than 50 lb to the front axle. I wouldn't worry about it, especially since the truck handles better.