RoadRunner,
I have the XGT H4 as well. I run the same pressure as you 31F 34R and only got 30K mi out of the set. It is not like one tire wore out, they all did. When I first got them I loved them, the traction was great. It wasnâ??t long before I realized that they made a lot of noise. Just about everyone who rides in my car comments about the road noise.
I guess I should have taken them back when I frist noticed the noise.
Oh well,
jeff