The OP is on the hairy edge seems to not understand that, IMHO
Whether by sizing and/or setup
Comments on going out to actually weigh everything and doing the simple math
against their TV's ratings is towards finding out where the OP is in reference
to their TV's ratings
Orientation stuff is towards their setup (all of the dials, knobs, etc to
adjust towards a setup goal)
The goal on setup is to restore enough weight back onto the TV's front axle from
the TV's rear axle. It used to be 'even drop', but the various OEMs have such
different suspensions that the best advice is to follow the glove box manual
on how much to restore the TV's front axle to
The trailer tongue should be in the 12%-15% range and I prefer heavier. Why
folks have asked what the tongue weight is
The orientation of the trailers tongue should be level at it's highest pointing
I prefer slightly nose down and that has solved many folks problems with just
that
"Fatigued" to an engineer means it is failing to failed....AKA...busted
For the condition the OP describes...says they are the hairy edge of their
ratings and/or not setup properly
Meaning that they are okay when everything is NOT severe...but...when it does
move towards a severe condition...it sways for a 'white knuckle' experience...