I agree that the x-radials are older in design.
unfortunately all they had at the time was those in stock.
I just had the rear control arms changed and could not wait any longer to get new tires, because I was going deaf from the OEM tires due to the negative camber problem. (still managed to get 45k out of them though).
One other problem is I used to put 40psi in the tires but I could only get Costco to put 35psi. Since it is nitrogen filled I'm trying to keep it like that, thus I have not gone to the local gas station to fill it up.