Capacity/Capacity Plate Question

[thinkxingu]

Hi All,
My 'Toon has a capacity plate that says 11 people or 1800 pounds. In the next couple weeks, I'm planning on taking some friends and their children out. With three couples that have two children each, we'd be at 12 passengers and a rounded-up weight of 1300 pounds. Because of the size of the children, there's plenty of space to sit while underway.

My question: is this legal? I'm confident it's not overloading the boat for space and weight, but the 12 would exceed the capacity plate, and what I can find for wording is wishy-washy.

Thanks!