All of the snow around here is definitely Mountain Travel every time. At least an hour drive or more into the mountains from sea level. So everything is a 5000 to 6000 to 7000 foot climb or more. I don't have a diesel and don't have a desire for one so I really try to stay away from too much weight. Even with a diesel it just is one hell of a lot more dangerous with a lot more weight going up and especially down Hills/mountains. I did go from a two-place trailer open to a closed two place trailer but again it just seems like too much weight to pull up and down for two snowmobiles so I went back to an ultra-light aluminum open trailer. I have had that for the last 4 years or so and it's served me very well but again changing those little golf cart tires in the snowy Tundra and it happens once every other year even if I keep a good eye on the tires. Then of course the snowmobiles are covered in crap thrown up by the truck when we get there. And I'm always looking back at that thing in the dark swinging around waiting for the tire to blow or something. and now instead of having the weight to pull up the hill I'll have the weight in the back of the truck for more traction. Same coming down.