I added the new programming this morning and tried it over my lunch hour. Defininte difference in power and smoothness of shifting. Level 3 seems to have more power and is just as smooth as the old level 2. Level 4 is just plain awesome. From a roll in 2nd gear you get a pretty good puff of smoke them you are GONE. It dosen't seem defuel hardly at all in the 3 or 4 times i went thru the gears. I am very happy with the new programming. Nice work Buck.