Sure is...if you sign up to JDM Style he has a thread that shows some close ups of the 10.5's on the car...might be on SAU as well
I'm old too (if you look at the wasteland thread asking about age, that is), lol...
Dialling in some negative camber improves grip when cornering. It places the tire at a more better angle on the road, transmitting the forces through the vertical plane of the tire, rather than through a shear force across it... and it also helps get the top of the tyre inside the guard.