Grit,
Me myself and I agree.
I still like what I was told when it came to buying an equipment trailer once, Told the manufacture rep I wanted to carry 12000 lbs on the trailer. He tried to tell me a twin 6K axle trailer was perfect, as long as I carried enough hitch weght, IE the 4000+ lbs of trailer tare wt. I was asking about a twin 7K axel trailer, because I only wanted to have 2000-2500 lbs of hitch wt.....
I figure on this, I can put the amount rated on the axels, the rest is hitch wt. So a twin 5K axle trailer could run down the road at 10K on the axels, plus 10-25% of the total weight being HW, around 14K for a 25% HW trailer, or 1200 for 10%, both options leaving 10K on the 10K axles. This is ANY type of use of trailer one wants to talk about. Then again, one does not always have this ability, as the what the trailer tongue is made of, what strength etc, may lower the true total you can run down the road at. True weight LEO's, only measure the axel wts, they dont measure the HW of the trailer, other than what is on the axel of the tow rig.
Marty