I have been shopping for new tires recently and have came to the General Grabber UHP or the Kumho Ecsta STX. Does any one have any hands on experience with these tires, or any other tire I should look at? I currently have Falken Zeix S/TZ and I'm not real happy with them. I have about 15k miles on them and they are pretty well shot. I guess I drive rough or something (but the Toyo proxes that were on the truck lasted about 30k). Sizes im looking for are 255/65/16 or 255/70/16. Thanks for any help.