Yes, don't shift your trans manually. Save it for the next guy. You might wear out the band and have fun at the same time and.....what the hell, isn't that why you have a fast car????? Drive it like you stole and fix it in the winter in 10 years. That is what winters are for. Holy mackerel, I just out driving my pushbutton Plymouth beating the stuffing out of the car and thinking, this is why I wait for nice weather. Don't manually shift it because the band is going to wear out!!!!!! Think about it, live, drive fast, life is short.