has anyone got there tires siped? was it worth it? reason i ask is this is my first winter with my lift and 35" micky thompson ATZ's on my chev and i can already tell its gonna be a long one. we went up for the first ride yesterday and on the slushy icy roads my tires suck, i actually had to blow a stop light with the fourplace on back cuz i couldnt get the truck stopped and i was only doin about 25-30 mph and i started slowing about a half a block from the light, scary sh**. i'm sure the biggest problem is the width of the tires cuz they are about 13" wide, but i cant afford a new set just for the winter so what do ya think, will siping help?