I am somewhat new to film, and recently came into a Minolta XG-M and some Kodak Max 400 film that expired in 2006. I shot a roll of it and it came out decent (very grainy, but not destroyed), and am going to shoot the other 2 rolls I have. I read that overexposing expired film can compensate for some of its chemical deterioration.

My question is if I should push the film by turning the exposure adjustment on the camera to +1 or +2, or by setting the film speed control on the camera to 200 or 100?