Need opinions on most critical TV weight limitation

Take a dart and toss it onto this diagram and take that as your weakest link in
the food chain of ratings system... ;)

Or choose which component/system you wish to wear out or fail first... :B

Or guesstimate what each rating's margins are and then consume those
margins knowing that there will still be enough left when you sell
the vehicle... ;)

{edit}...they are all critical, as any one that fails will bring down
the rest of the 'system'