I am a newbie so be gentle. I want the advice/opinions of people that have used the Stihl 461 and the stihl 660 and what they like/dislike. I am going to buy one of them. I want to know that with just a hundred dollars difference to go with the 660 or when i am cutting down trees in the 20 -24 inch range will i even notice the difference between the two. Is is better to go with a machine that i can still tune the carburetor or is the new technology better. The weight I am not concerned about being only about a 1.5 pound difference. I am going to do some milling also probably 20-25 % of the saws usage. thanks.