In regards to setting up a weight distribution system like the Curt MV Weight Distribution System part # C17062, it is advised that you make any adjustments needed to the tow vehicles suspension first and then set the head tilt or spring bar tension on the weight distribution system.
I can't speak to every type of system such as the adjustable leaf springs you have but if you were using air bags for example, you would attach the trailer and then adjust the psi until you're as close to... view full answer...