Hi all. Hope to get some advice please on a new to me 2008 LX570. I live in Central Oregon and spend alot of time skiing. So frequent trips on winter roads. We use blizzaks on our Subaru, so I'm familiar with the benefit of dedicated winter tires. Since the LX is new to me, I don't have any experience with how it handles wintery/icy conditions. Summer tire will be Toyo AT3 on Tundra wheels. If I ran dedicated winter tires I think I'd use studded hakkipalita's on the stock 20" wheels. Are the Toyo AT3's good enough on the LX in winter that the studded hakkipalita's are overkill?