So the fighter guide is out there, and in reviewing it for further updates I really have issue with the way some rules interact.
The feat Stalwart specifies that the DR gained from it stacks with class features, and specifically calls out the barbarian's damage reduction. This line implies that the alternate class feature Armored Juggernaut would also be eligible since it is a class feature.
The Armored Juggernaut feature specifies that it stacks with the armor's DR, such as from adamantine.
What do?
Armored juggernaut disqualifies itself by saying it doesn't stack with anything else but adamnite armor, spefically saying it doesn't stack with other forms of dr.
"The DR from this ability stacks with that provided by adamantine armor, but not with other forms of damage reduction. "
makes sense, but is sad.
Indeed.
Yep