I am looking into a Gen 5 900 ace turbo or ace turbo r. I currently run a renegade 850 and a Yamaha Nytro. Is it worth it to spend the extra money on a turbo r? I'm not too concerned about top speed but I like to open the throttle when possible. Based on the numbers for both machines, it would seem like the ace turbo is similar to my Nytro. I am thinking about a new Viper as well but not sure if I trust the Cat side of things.