I agree. Every week around home (tons of snow for a change) guys go slow, get stuck, change plugs, worry about gas, worry about oil, and this is not only on sleds only a few years old, but new ones. A group of new F cats and a new Machz1000 stopped us and asked where the nearest gas is. They had come about the same distance I had and my Vector gas gauge was down one bar!!! I told them they could just enjoy riding hard and not worrying about gas for at least 120 miles or so. Maybe that's what I like...the runnability of the four strokes is beyond reproach..same day after day, and since a sled is just a chassis with 'stuff' hanging off, which is mostly adjustable, you can ride these heavier sleds just as hard and have as much fun with far fewer core (read, MOTOR) issues than ever before. I do not want my 69 Skiroule S300 back. That was only 270 pounds..lol.