Executive,
I would think your Monaco is full up on tire pressure all the time. I, too, run the max in all six of my tires. Being overweight is the biggest issue and for those that have a small margin of cargo weight need to see where their weight is. Nothing is absolute; you can't say that an underweight coach is 100% safe just as you can't say an overloaded coach is 100% dangerous. Too many variables. It is smart to know where you are if you think you are close but isn't crucial if you think you are below. I haven't weighed mine and I am not even close to GVWR.
dub