I rotated my tires for the first or second time in 7 years ( about 1000 miles per year) the inside two rows were worn but the rest were flat.
I stopped at a real alignment shop and I was thinking excess camber but they said it's more likely toe out at speeds from warn suspension.
I added a 1/4 turn to each side to get some toe in. Getting tired rebalanced tomorrow and we will see if it feels any different. Took 7 years to get to where it is now I have 3 more before I replace them so even if I have too much toe in as long as it drives well I'm good.