Ball Joint Question

I am going to be replacing the Ball Joints om my 00 Silverado 1500 Z71 very soo. My question is since the truck has a 6 inch Rough Country NDT lift should I use the Adjustable Upper Ball Joints that allow for 3 degrees Positive or Negative Castor/Camber? Is there any Advantage?

Not an expert on these trucks, but anything that affords a better range of adjustment is a positive.

Thank you for your input.. Kinda what I was thinking too.