I use my Nissan LKA all the way to maybe Colfax. Beyond that I'm skeptical any modern system can tolerate the relatively tight turns and varying road conditions

I use my Nissan LKA all the way to maybe Colfax. Beyond that I'm skeptical any modern system can tolerate the relatively tight turns and varying road conditions even in the summer. Still, getting 2+ hours with LKA is really helpful.