There is no such thing as smooth power on a two-stroke. I love them and I have owned a yz125 for almost 6 years. They are extremely unpredictable are always going full bore at all times. Two strokes make good riders into great riders but there is nothing smooth about them and they are definitely not even close to the smoothness of a big bore four stroke. If you want a two-stroke to be your woods bike, I hope you don't mind toting a wrench, an extra spark plug, and a can of started fluid everywhere you go.